{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-81883", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-27T17:48:42.122Z", "datePublished": "2026-09-22T15:14:47.022Z", "dateUpdated": "2026-09-22T16:11:40.440Z"}, "containers": {"cna": {"title": "radare2: Out-of-bounds Read at the end of string in the LUA 5.3 bytecode", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "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:L", "version": "3.1"}}], "references": [{"name": "https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c"}, {"name": "https://github.com/radareorg/radare2/issues/26228", "tags": ["x_refsource_MISC"], "url": "https://github.com/radareorg/radare2/issues/26228"}, {"name": "https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3", "tags": ["x_refsource_MISC"], "url": "https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3"}, {"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": "2026-09-22T15:14:47.022Z"}, "descriptions": [{"lang": "en", "value": "radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Lua 5.3 bytecode function parser was vulnerable because the Lua 5.3 bytecode function parser read fixed function-metadata fields immediately after a function-name string without checking the remaining buffer length. The vulnerability is triggered by opening or inspecting a crafted Lua 5.3 bytecode file whose function-name string ends at the input-buffer boundary. The parser read two integers and three one-byte fields beyond the allocated input buffer. This can cause invalid parser results or process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0."}], "source": {"advisory": "GHSA-96m5-hvwp-674c", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/radareorg/radare2/issues/26228", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T16:11:00.525508Z", "id": "CVE-2026-81883", "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": "2026-09-22T16:11:40.440Z"}}]}}

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{"affected": [{"affectedData": [{"product": "radare2", "vendor": "radareorg", "versions": [{"status": "affected", "version": "< 6.2.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Lua 5.3 bytecode function parser was vulnerable because the Lua 5.3 bytecode function parser read fixed function-metadata fields immediately after a function-name string without checking the remaining buffer length. The vulnerability is triggered by opening or inspecting a crafted Lua 5.3 bytecode file whose function-name string ends at the input-buffer boundary. The parser read two integers and three one-byte fields beyond the allocated input buffer. This can cause invalid parser results or process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0."}], "id": "CVE-2026-81883", "lastModified": "2026-09-22T16:18:03.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "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:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-22T16:18:03.200", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3"}, {"source": "security-advisories@github.com", "url": "https://github.com/radareorg/radare2/issues/26228"}, {"source": "security-advisories@github.com", "url": "https://github.com/radareorg/radare2/releases/tag/6.2.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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