{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-116732", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-26T20:23:35.263Z", "datePublished": "2026-10-26T21:52:33.622Z", "dateUpdated": "2026-10-26T21:52:33.622Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-26T21:52:33.622Z"}, "datePublic": "2026-10-22T00:00:00.000Z", "title": "libdwarf through 2.3.3 Heap Out-of-Bounds Read via dwarf_debug_addr_table", "descriptions": [{"lang": "en", "value": "libdwarf through 2.3.3 contains a heap out-of-bounds read vulnerability in dwarf_debug_addr_table() that omits the table starting offset when validating .debug_addr unit length. Attackers can supply a crafted object file with a non-zero offset table, causing dwarf_debug_addr_by_index() to read past the heap buffer, disclosing adjacent heap bytes or crashing consumers."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Read", "cweId": "CWE-125", "type": "CWE"}]}], "affected": [{"vendor": "davea42", "product": "libdwarf", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "custom", "lessThanOrEqual": "2.3.3"}], "packageURL": "pkg:github/davea42/libdwarf-code", "repo": "https://github.com/davea42/libdwarf-code"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:libdwarf_project:libdwarf:*:*:*:*:*:*:*:*", "versionEndIncluding": "2.3.3"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseScore": 4.4, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/davea42/libdwarf-code/issues/336", "tags": ["issue-tracking"], "name": "GitHub Issue #336"}, {"url": "https://github.com/davea42/libdwarf-code", "tags": ["product"]}, {"url": "https://github.com/davea42/libdwarf-code/commit/71f04013ddc2a3c88b9e25a4162ee2824741b593", "tags": ["patch"]}, {"url": "https://github.com/davea42/libdwarf-code/blob/v2.3.3/src/lib/libdwarf/dwarf_debugaddr.c#L175-L216", "tags": ["technical-description"]}, {"url": "https://hackmd.io/@haindpwn/libdwarf-debug-addr-table-section-offset-oob-read", "tags": ["third-party-advisory"]}, {"name": "VulnCheck Advisory: libdwarf through 2.3.3 Heap Out-of-Bounds Read via dwarf_debug_addr_table", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/libdwarf-through-2.3.3-heap-out-of-bounds-read-via-dwarf-debug-addr-table"}], "credits": [{"lang": "en", "value": "HaiND from the Post and Telecommunication Institute of Technology", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:github/davea42/libdwarf-code", "product": "libdwarf", "repo": "https://github.com/davea42/libdwarf-code", "vendor": "davea42", "versions": [{"lessThanOrEqual": "2.3.3", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "libdwarf through 2.3.3 contains a heap out-of-bounds read vulnerability in dwarf_debug_addr_table() that omits the table starting offset when validating .debug_addr unit length. Attackers can supply a crafted object file with a non-zero offset table, causing dwarf_debug_addr_by_index() to read past the heap buffer, disclosing adjacent heap bytes or crashing consumers."}], "id": "CVE-2026-116732", "lastModified": "2026-10-26T22:16:57.210", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 2.5, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-10-26T22:16:57.210", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/davea42/libdwarf-code"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/davea42/libdwarf-code/blob/v2.3.3/src/lib/libdwarf/dwarf_debugaddr.c#L175-L216"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/davea42/libdwarf-code/commit/71f04013ddc2a3c88b9e25a4162ee2824741b593"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/davea42/libdwarf-code/issues/336"}, {"source": "disclosure@vulncheck.com", "url": "https://hackmd.io/@haindpwn/libdwarf-debug-addr-table-section-offset-oob-read"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/libdwarf-through-2.3.3-heap-out-of-bounds-read-via-dwarf-debug-addr-table"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

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