{
    "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-2026-10652",
        "tracking": {
            "current_release_date": "2026-09-06T15:10:05.258161Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-10652",
            "initial_release_date": "2026-06-30T16:59:24.408328Z",
            "revision_history": [
                {
                    "date": "2026-06-30T16:59:24.408328Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-06-30T16:59:26.510767Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-06-30T17:40:28.191732Z",
                    "number": "3",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-06-30T17:49:03.374508Z",
                    "number": "4",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-06-30T17:49:05.395828Z",
                    "number": "5",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-01T14:45:34.417216Z",
                    "number": "6",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-07-01T14:45:37.781774Z",
                    "number": "7",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-06T20:28:08.049541Z",
                    "number": "8",
                    "summary": "Products connected (1).| Product Identifiers created (1).| Exploits created (1)."
                },
                {
                    "date": "2026-07-06T20:28:10.172553Z",
                    "number": "9",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-10T15:41:45.490015Z",
                    "number": "10",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-07-10T15:41:47.693725Z",
                    "number": "11",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-17T22:39:56.898874Z",
                    "number": "12",
                    "summary": "Products connected (1).| Products removed (1)."
                },
                {
                    "date": "2026-07-17T22:40:15.326239Z",
                    "number": "13",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-06T22:40:23.416838Z",
                    "number": "14",
                    "summary": "Products connected (1).| Products removed (1)."
                },
                {
                    "date": "2026-08-06T22:40:25.054977Z",
                    "number": "15",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-11T15:11:53.141627Z",
                    "number": "16",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-08-11T15:13:09.131499Z",
                    "number": "17",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-24T15:57:56.414413Z",
                    "number": "18",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-08-24T15:57:57.825348Z",
                    "number": "19",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-02T10:45:46.221776Z",
                    "number": "20",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-02T23:35:01.020436Z",
                    "number": "21",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-03T14:38:16.389596Z",
                    "number": "22",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-03T19:01:41.727547Z",
                    "number": "23",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-04T15:47:42.150014Z",
                    "number": "24",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-05T03:59:22.490101Z",
                    "number": "25",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-05T15:45:34.663121Z",
                    "number": "26",
                    "summary": "EPSS updated."
                }
            ],
            "status": "interim",
            "version": "26"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:semver/4.3.0|<4.5.0",
                                "product": {
                                    "name": "vers:semver/4.3.0|<4.5.0",
                                    "product_id": "CSAFPID-8507798"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=4.3.0|<=4.4.1",
                                "product": {
                                    "name": "vers:unknown/>=4.3.0|<=4.4.1",
                                    "product_id": "CSAFPID-8537769",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*"
                                    }
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "Zephyr"
                    }
                ],
                "category": "vendor",
                "name": "Zephyrproject"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-10652",
            "cwe": {
                "id": "CWE-125",
                "name": "Out-of-bounds Read"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "Zephyr's DNS resolver (subsys/net/lib/dns) parses resource records from DNS responses in dns_unpack_answer(), which validated only the fixed RR header (type, class, TTL, rdlength) and accepted any attacker-declared rdlength, including one extending past the end of the received datagram. The TXT and SRV consumers in dns_validate_record() (resolve.c) then read up to rdlength bytes (clamped only to a record-type maximum such as DNS_MAX_TEXT_SIZE, default 64, not to the packet) from the receive buffer via memcpy without their own bounds check, and pass the result to the application's resolve callback. A malicious or spoofed DNS server, an on-path attacker forging UDP DNS replies, or (with mDNS/LLMNR enabled) any LAN node can craft a truncated TXT or SRV response that causes an out-of-bounds read of adjacent receive-pool memory; the disclosed stale bytes (residual contents of prior DNS packets / uninitialized pool memory) are returned to the application as TXT/SRV record contents, an information leak, and may in some configurations cross the allocation boundary and fault, causing a denial of service. The read is bounded (~64 bytes for TXT, ~6 for SRV) and read-only (no write). The fix rejects any record whose declared rdata extends past dns_msg->msg_size at the single chokepoint in dns_unpack_answer(). Affected: v4.3.0 and v4.4.0.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/10xxx/CVE-2026-10652.json"
                },
                {
                    "category": "description",
                    "text": "Zephyr's DNS resolver (subsys/net/lib/dns) parses resource records from DNS responses in dns_unpack_answer(), which validated only the fixed RR header (type, class, TTL, rdlength) and accepted any attacker-declared rdlength, including one extending past the end of the received datagram. The TXT and SRV consumers in dns_validate_record() (resolve.c) then read up to rdlength bytes (clamped only to a record-type maximum such as DNS_MAX_TEXT_SIZE, default 64, not to the packet) from the receive buffer via memcpy without their own bounds check, and pass the result to the application's resolve callback. A malicious or spoofed DNS server, an on-path attacker forging UDP DNS replies, or (with mDNS/LLMNR enabled) any LAN node can craft a truncated TXT or SRV response that causes an out-of-bounds read of adjacent receive-pool memory; the disclosed stale bytes (residual contents of prior DNS packets / uninitialized pool memory) are returned to the application as TXT/SRV record contents, an information leak, and may in some configurations cross the allocation boundary and fault, causing a denial of service. The read is bounded (~64 bytes for TXT, ~6 for SRV) and read-only (no write). The fix rejects any record whose declared rdata extends past dns_msg->msg_size at the single chokepoint in dns_unpack_answer(). Affected: v4.3.0 and v4.4.0.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10652"
                },
                {
                    "category": "other",
                    "text": "0.00415",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "3.6",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "Is related to CWE-125 (Out-of-bounds Read), Is related to (a version of) an uncommon product, There is exploit data available from source Nvd, There is cwe data available from source Nvd",
                    "title": "NCSC Score top decreasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-8537769",
                    "CSAFPID-8507798"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/10xxx/CVE-2026-10652.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10652"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-10652"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://github.com/zephyrproject-rtos/zephyr/commit/58b46c81c6796dac4dc7391f32ba006474f94dc8"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3jxq-xx8g-q8j2"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L",
                        "baseScore": 4.8,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-8507798",
                        "CSAFPID-8537769"
                    ]
                }
            ],
            "title": "CVE-2026-10652"
        }
    ]
}