{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-3086",
        "tracking": {
            "current_release_date": "2026-04-01T14:13:56.417824Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-3086",
            "initial_release_date": "2026-02-26T11:05:36.762277Z",
            "revision_history": [
                {
                    "date": "2026-02-26T11:05:36.762277Z",
                    "number": "1",
                    "summary": "CVE created.| Source connected.| CVE status created. (valid)| Products connected (4).| References created (14)."
                },
                {
                    "date": "2026-02-26T11:05:38.587626Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-03-07T11:35:10.033096Z",
                    "number": "3",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-10T18:43:15.845623Z",
                    "number": "4",
                    "summary": "Source created.| CVE status created. (valid)| Products connected (2)."
                },
                {
                    "date": "2026-03-13T21:39:30.428782Z",
                    "number": "5",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products connected (1).| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-03-13T21:39:32.794573Z",
                    "number": "6",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-14T06:43:06.892825Z",
                    "number": "7",
                    "summary": "Description created for source."
                },
                {
                    "date": "2026-03-14T14:52:36.433465Z",
                    "number": "8",
                    "summary": "Source created.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-14T14:52:45.054934Z",
                    "number": "9",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-16T14:35:41.033166Z",
                    "number": "10",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-03-16T14:35:42.738033Z",
                    "number": "11",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-16T20:39:51.994698Z",
                    "number": "12",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-03-16T20:39:53.677709Z",
                    "number": "13",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-17T00:27:54.849841Z",
                    "number": "14",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (12).| Product Identifiers created (5).| Product Remediations created (12).| References created (4).| CWES updated (1).| Vendor_assessment created."
                },
                {
                    "date": "2026-03-17T00:28:05.530531Z",
                    "number": "15",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-17T19:26:30.438426Z",
                    "number": "16",
                    "summary": "Products connected (1).| Product Identifiers created (1)."
                },
                {
                    "date": "2026-03-17T19:26:34.068727Z",
                    "number": "17",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-18T09:30:05.697441Z",
                    "number": "18",
                    "summary": "Products connected (1).| References created (1)."
                },
                {
                    "date": "2026-03-18T09:30:10.602362Z",
                    "number": "19",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-20T09:33:48.464294Z",
                    "number": "20",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-20T09:33:52.346814Z",
                    "number": "21",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-25T10:14:50.113007Z",
                    "number": "22",
                    "summary": "Products connected (1).| References created (1)."
                },
                {
                    "date": "2026-03-25T10:14:52.916298Z",
                    "number": "23",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-30T11:12:10.678538Z",
                    "number": "24",
                    "summary": "Products connected (1).| References created (3)."
                },
                {
                    "date": "2026-03-30T11:12:13.117903Z",
                    "number": "25",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-31T11:09:36.951212Z",
                    "number": "26",
                    "summary": "Products connected (1).| References created (2)."
                },
                {
                    "date": "2026-03-31T11:09:38.872837Z",
                    "number": "27",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-04-01T14:13:51.818159Z",
                    "number": "28",
                    "summary": "Products connected (1).| References created (2)."
                },
                {
                    "date": "2026-04-01T14:13:54.695011Z",
                    "number": "29",
                    "summary": "NCSC Score updated."
                }
            ],
            "status": "interim",
            "version": "29"
        }
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                                    "product_id": "CSAFPID-1295663",
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    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-3086",
            "cwe": {
                "id": "CWE-787",
                "name": "Out-of-bounds Write"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "GStreamer H.266 Codec Parser Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the processing of APS units. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28911.",
                    "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-3086"
                },
                {
                    "category": "description",
                    "text": "GStreamer H.266 Codec Parser Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.  The specific flaw exists within the processing of APS units. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28911.",
                    "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-3086"
                },
                {
                    "category": "description",
                    "text": "GStreamer H.266 Codec Parser Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the processing of APS units. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28911.",
                    "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-3086"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in GStreamer. A remote attacker could exploit this out-of-bounds write vulnerability by providing specially crafted H.266 video data. This issue, specifically within the processing of Adaptation Parameter Set (APS) units, stems from insufficient validation of user-supplied data, leading to a write beyond the allocated buffer. Successful exploitation allows the attacker to execute arbitrary code on the system where GStreamer is running.\nThis vulnerability is rated as IMPORTANT. It affects the GStreamer H.266 Codec Parser, which is included in Red Hat Enterprise Linux versions 6, 7, 8, 9, and 10. Exploitation requires processing specially crafted H.266 media content, which could lead to remote code execution in the context of the current process.",
                    "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-3086"
                },
                {
                    "category": "other",
                    "text": "0.00086",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "4.4",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is product data available from source Certbundde",
                    "title": "NCSC Score top increasing factors"
                },
                {
                    "category": "other",
                    "text": "Is related to (a version of) an uncommon product, Is related to a product by vendor Debian, The value of the most recent EPSS score, Is related to a product by vendor Open Source",
                    "title": "NCSC Score top decreasing factors"
                },
                {
                    "category": "details",
                    "text": "Severity: 3\n",
                    "title": "Vendor assessment"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-5726736",
                    "CSAFPID-5726737",
                    "CSAFPID-5726738",
                    "CSAFPID-5726739",
                    "CSAFPID-5826008",
                    "CSAFPID-1439315",
                    "CSAFPID-1439317",
                    "CSAFPID-1439319",
                    "CSAFPID-1439321",
                    "CSAFPID-2858634",
                    "CSAFPID-2861752",
                    "CSAFPID-2861753",
                    "CSAFPID-2861754",
                    "CSAFPID-2861755",
                    "CSAFPID-2861756",
                    "CSAFPID-2861757",
                    "CSAFPID-2861758",
                    "CSAFPID-5839045",
                    "CSAFPID-1295663",
                    "CSAFPID-1317174",
                    "CSAFPID-1317176",
                    "CSAFPID-1330299",
                    "CSAFPID-1317175"
                ],
                "known_not_affected": [
                    "CSAFPID-1397277",
                    "CSAFPID-2960956"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0525.json"
                },
                {
                    "category": "external",
                    "summary": "Source - debian",
                    "url": "https://security-tracker.debian.org/tracker/CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Source raw - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3086.json"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Source raw - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Source raw - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Source - redhat",
                    "url": "https://access.redhat.com/security/cve/CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Source raw - redhat",
                    "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-3086.json"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0525.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0525"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0001.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0002.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0003.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0004.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0005.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0006.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0007.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0008.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0009.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0010.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0011.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://gstreamer.freedesktop.org/security/sa-2026-0012.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd; redhat",
                    "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-170/"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd; redhat",
                    "url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/025d59cf3459c2903f0384b6b94bc3235e177b53"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3086"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://lists.debian.org/debian-security-announce/2026/msg00076.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024897.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00018.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/ZDKDIN2WNGBRBR3WLPM2DKIOENYVBTHM/"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00019.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://ubuntu.com/security/notices/USN-8130-1"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://ubuntu.com/security/notices/USN-8131-1"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://access.redhat.com/errata/RHSA-2026:6300"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://access.redhat.com/errata/RHSA-2026:6259"
                }
            ],
            "remediations": [
                {
                    "category": "mitigation",
                    "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
                    "product_ids": [
                        "CSAFPID-1439315",
                        "CSAFPID-1439317",
                        "CSAFPID-1439319",
                        "CSAFPID-1439321",
                        "CSAFPID-2858634",
                        "CSAFPID-2861752",
                        "CSAFPID-2861753",
                        "CSAFPID-2861754",
                        "CSAFPID-2861755",
                        "CSAFPID-2861756",
                        "CSAFPID-2861757",
                        "CSAFPID-2861758"
                    ]
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.0",
                        "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    },
                    "products": [
                        "CSAFPID-1295663",
                        "CSAFPID-1317174",
                        "CSAFPID-1317175",
                        "CSAFPID-1317176",
                        "CSAFPID-1330299",
                        "CSAFPID-1439315",
                        "CSAFPID-1439317",
                        "CSAFPID-1439319",
                        "CSAFPID-1439321",
                        "CSAFPID-2858634",
                        "CSAFPID-2861752",
                        "CSAFPID-2861753",
                        "CSAFPID-2861754",
                        "CSAFPID-2861755",
                        "CSAFPID-2861756",
                        "CSAFPID-2861757",
                        "CSAFPID-2861758",
                        "CSAFPID-5726736",
                        "CSAFPID-5726737",
                        "CSAFPID-5726738",
                        "CSAFPID-5726739",
                        "CSAFPID-5826008",
                        "CSAFPID-5839045"
                    ]
                }
            ],
            "title": "CVE-2026-3086"
        }
    ]
}