{
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        "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-2026-4647",
        "tracking": {
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            "id": "CVE-2026-4647",
            "initial_release_date": "2026-01-20T08:33:08.286136Z",
            "revision_history": [
                {
                    "date": "2026-01-20T08:33:08.286136Z",
                    "number": "1",
                    "summary": "NCSC Score created."
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                {
                    "date": "2026-03-23T17:31:25.939715Z",
                    "number": "2",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)."
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                {
                    "date": "2026-03-23T17:31:31.824720Z",
                    "number": "3",
                    "summary": "NCSC Score updated."
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                {
                    "date": "2026-03-23T18:12:38.960211Z",
                    "number": "4",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)."
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                {
                    "date": "2026-03-23T18:12:41.247453Z",
                    "number": "5",
                    "summary": "NCSC Score updated."
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                {
                    "date": "2026-03-24T03:20:04.769769Z",
                    "number": "6",
                    "summary": "Unknown change."
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                {
                    "date": "2026-03-24T20:42:33.065613Z",
                    "number": "7",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (26).| Product Identifiers created (6).| Product Remediations created (26).| References created (3).| CWES updated (1).| Vendor_assessment created."
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                    "date": "2026-03-24T20:42:38.892414Z",
                    "number": "8",
                    "summary": "NCSC Score updated."
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                    "number": "9",
                    "summary": "Source created.| CVE status created. (valid)| Products connected (2)."
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                    "date": "2026-03-24T20:43:46.255279Z",
                    "number": "10",
                    "summary": "NCSC Score updated."
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                    "date": "2026-03-24T20:44:06.759352Z",
                    "number": "11",
                    "summary": "Description created for source."
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                {
                    "date": "2026-03-24T20:54:22.873721Z",
                    "number": "12",
                    "summary": "Products connected (7).| Product Identifiers created (7)."
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                    "date": "2026-03-24T20:54:40.172199Z",
                    "number": "13",
                    "summary": "NCSC Score updated."
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                {
                    "date": "2026-03-24T20:57:41.846045Z",
                    "number": "14",
                    "summary": "Source created.| CVE status created. (valid)| Products created (1).| References created (4)."
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                    "date": "2026-03-24T20:57:46.064592Z",
                    "number": "15",
                    "summary": "NCSC Score updated."
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                {
                    "date": "2026-03-24T21:33:45.640714Z",
                    "number": "16",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
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                {
                    "date": "2026-03-27T19:41:04.216482Z",
                    "number": "17",
                    "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (4).| CWES updated (1)."
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                {
                    "date": "2026-03-27T19:41:08.515571Z",
                    "number": "18",
                    "summary": "NCSC Score updated."
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                {
                    "date": "2026-03-28T07:41:03.600533Z",
                    "number": "19",
                    "summary": "Products connected (2).| Product Identifiers created (2)."
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                                        "category": "product_version_range",
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                                        "product": {
                                            "name": "vers:microsoft/*",
                                            "product_id": "CSAFPID-5263224",
                                            "product_identification_helper": {
                                                "cpe": "cpe:2.3:a:microsoft:cbl2_gdb_11.2-10:*:*:*:*:*:*:*:*"
                                            }
                                        }
                                    }
                                ],
                                "category": "product_name",
                                "name": "cbl2 gdb 11.2-10 on CBL Mariner 2.0"
                            }
                        ],
                        "category": "product_family",
                        "name": "Open Source Software"
                    }
                ],
                "category": "vendor",
                "name": "Microsoft"
            },
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "branches": [
                                    {
                                        "category": "product_version_range",
                                        "name": "vers:deb/unknown",
                                        "product": {
                                            "name": "vers:deb/unknown",
                                            "product_id": "CSAFPID-2020216"
                                        }
                                    }
                                ],
                                "category": "product_name",
                                "name": "binutils"
                            }
                        ],
                        "category": "product_family",
                        "name": "bookworm"
                    },
                    {
                        "branches": [
                            {
                                "branches": [
                                    {
                                        "category": "product_version_range",
                                        "name": "vers:deb/unknown",
                                        "product": {
                                            "name": "vers:deb/unknown",
                                            "product_id": "CSAFPID-2020217"
                                        }
                                    }
                                ],
                                "category": "product_name",
                                "name": "binutils"
                            }
                        ],
                        "category": "product_family",
                        "name": "bullseye"
                    }
                ],
                "category": "vendor",
                "name": "Debian"
            },
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<2.47",
                                "product": {
                                    "name": "vers:unknown/<2.47",
                                    "product_id": "CSAFPID-5902918"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "binutils"
                    }
                ],
                "category": "vendor",
                "name": "Open Source"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-4647",
            "cwe": {
                "id": "CWE-125",
                "name": "Out-of-bounds Read"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4647"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/4xxx/CVE-2026-4647.json"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.\nThis is a MODERATE impact vulnerability. The flaw in GNU Binutils BFD library occurs when processing specially crafted XCOFF object files, leading to out-of-bounds memory access. This could result in application crashes or information disclosure. Exploitation requires an attacker to provide a malicious XCOFF file to a vulnerable application.",
                    "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4647.json"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.",
                    "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-4647"
                },
                {
                    "category": "description",
                    "text": "Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library",
                    "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar"
                },
                {
                    "category": "other",
                    "text": "0.00012",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "4.5",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is product data available from source Certbundde, Is related to (a version of) an uncommon product",
                    "title": "NCSC Score top increasing factors"
                },
                {
                    "category": "other",
                    "text": "There is product data available from source Debian",
                    "title": "NCSC Score top decreasing factors"
                },
                {
                    "category": "details",
                    "text": "Severity: 2\n",
                    "title": "Vendor assessment"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-1439315",
                    "CSAFPID-1439317",
                    "CSAFPID-1439319",
                    "CSAFPID-1439321",
                    "CSAFPID-1439328",
                    "CSAFPID-1439329",
                    "CSAFPID-1851481",
                    "CSAFPID-1851482",
                    "CSAFPID-1851483",
                    "CSAFPID-1851484",
                    "CSAFPID-1851487",
                    "CSAFPID-1851488",
                    "CSAFPID-1851489",
                    "CSAFPID-1851490",
                    "CSAFPID-1851491",
                    "CSAFPID-1851494",
                    "CSAFPID-1851495",
                    "CSAFPID-1851496",
                    "CSAFPID-2858634",
                    "CSAFPID-2872236",
                    "CSAFPID-2872237",
                    "CSAFPID-2872238",
                    "CSAFPID-2872239",
                    "CSAFPID-2872240",
                    "CSAFPID-5312332",
                    "CSAFPID-5312333",
                    "CSAFPID-2020216",
                    "CSAFPID-2020217",
                    "CSAFPID-202586",
                    "CSAFPID-1992579",
                    "CSAFPID-1992585",
                    "CSAFPID-1994226",
                    "CSAFPID-2001071",
                    "CSAFPID-2062502",
                    "CSAFPID-2941214",
                    "CSAFPID-5902918",
                    "CSAFPID-5263222",
                    "CSAFPID-5687131",
                    "CSAFPID-5687138",
                    "CSAFPID-5826710",
                    "CSAFPID-5263224",
                    "CSAFPID-5687143"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4647"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/4xxx/CVE-2026-4647.json"
                },
                {
                    "category": "external",
                    "summary": "Source - redhat",
                    "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4647.json"
                },
                {
                    "category": "external",
                    "summary": "Source - debian",
                    "url": "https://security-tracker.debian.org/tracker/CVE-2026-4647"
                },
                {
                    "category": "external",
                    "summary": "Source - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0827.json"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Source - microsoft",
                    "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://access.redhat.com/security/cve/CVE-2026-4647"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde; cveprojectv5; nvd",
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450302"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd; redhat",
                    "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33919"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-4647"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4647"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0827.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0827"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://access.redhat.com/security/cve/cve-2026-4647"
                }
            ],
            "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-1439328",
                        "CSAFPID-1439329",
                        "CSAFPID-1851481",
                        "CSAFPID-1851482",
                        "CSAFPID-1851483",
                        "CSAFPID-1851484",
                        "CSAFPID-1851487",
                        "CSAFPID-1851488",
                        "CSAFPID-1851489",
                        "CSAFPID-1851490",
                        "CSAFPID-1851491",
                        "CSAFPID-1851494",
                        "CSAFPID-1851495",
                        "CSAFPID-1851496",
                        "CSAFPID-2858634",
                        "CSAFPID-2872236",
                        "CSAFPID-2872237",
                        "CSAFPID-2872238",
                        "CSAFPID-2872239",
                        "CSAFPID-2872240",
                        "CSAFPID-5312332",
                        "CSAFPID-5312333"
                    ]
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                        "baseScore": 6.1,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-1439315",
                        "CSAFPID-1439317",
                        "CSAFPID-1439319",
                        "CSAFPID-1439321",
                        "CSAFPID-1439328",
                        "CSAFPID-1439329",
                        "CSAFPID-1851481",
                        "CSAFPID-1851482",
                        "CSAFPID-1851483",
                        "CSAFPID-1851484",
                        "CSAFPID-1851487",
                        "CSAFPID-1851488",
                        "CSAFPID-1851489",
                        "CSAFPID-1851490",
                        "CSAFPID-1851491",
                        "CSAFPID-1851494",
                        "CSAFPID-1851495",
                        "CSAFPID-1851496",
                        "CSAFPID-1992579",
                        "CSAFPID-1992585",
                        "CSAFPID-1994226",
                        "CSAFPID-2001071",
                        "CSAFPID-2020216",
                        "CSAFPID-2020217",
                        "CSAFPID-202586",
                        "CSAFPID-2062502",
                        "CSAFPID-2858634",
                        "CSAFPID-2872236",
                        "CSAFPID-2872237",
                        "CSAFPID-2872238",
                        "CSAFPID-2872239",
                        "CSAFPID-2872240",
                        "CSAFPID-2941214",
                        "CSAFPID-5263222",
                        "CSAFPID-5263224",
                        "CSAFPID-5312332",
                        "CSAFPID-5312333",
                        "CSAFPID-5687131",
                        "CSAFPID-5687138",
                        "CSAFPID-5687143",
                        "CSAFPID-5826710",
                        "CSAFPID-5902918"
                    ]
                }
            ],
            "title": "CVE-2026-4647"
        }
    ]
}