{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-81879",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-08-27T17:48:42.122Z",
        "datePublished": "2026-09-22T15:09:01.910Z",
        "dateUpdated": "2026-09-22T15:38:46.170Z"
    },
    "containers": {
        "cna": {
            "title": "radare2: Heap out-of-bounds read in radare2 ELF PN_XNUM handling",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-125",
                            "lang": "en",
                            "description": "CWE-125: Out-of-bounds Read",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 5.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/radareorg/radare2/security/advisories/GHSA-jqfq-hvcp-xh4p",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/radareorg/radare2/security/advisories/GHSA-jqfq-hvcp-xh4p"
                },
                {
                    "name": "https://github.com/radareorg/radare2/issues/26223",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/radareorg/radare2/issues/26223"
                },
                {
                    "name": "https://github.com/radareorg/radare2/pull/26178",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/radareorg/radare2/pull/26178"
                },
                {
                    "name": "https://github.com/radareorg/radare2/commit/9449b07579c19b6b187c1a0918fbec2cef1a036e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/radareorg/radare2/commit/9449b07579c19b6b187c1a0918fbec2cef1a036e"
                },
                {
                    "name": "https://github.com/radareorg/radare2/releases/tag/6.2.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/radareorg/radare2/releases/tag/6.2.0"
                }
            ],
            "affected": [
                {
                    "vendor": "radareorg",
                    "product": "radare2",
                    "versions": [
                        {
                            "version": "< 6.2.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-22T15:09:01.910Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's ELF PN_XNUM handling was vulnerable because the ELF parser allocated the program-header array using the resolved PN_XNUM count but several consumers still iterated with the original e_phnum value of 65535. The vulnerability is triggered by processing a crafted ELF file with e_phnum = 0xffff and a much smaller resolved count in shdr[0].sh_info. Consumers iterated beyond the allocated program-header array. This can cause a heap out-of-bounds read and process termination, resulting in denial of service; memory disclosure and code execution have not been demonstrated. This issue is fixed in version 6.2.0."
                }
            ],
            "source": {
                "advisory": "GHSA-jqfq-hvcp-xh4p",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/radareorg/radare2/issues/26223",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-22T15:38:19.474912Z",
                                "id": "CVE-2026-81879",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-22T15:38:46.170Z"
                }
            }
        ]
    }
}