CVE-2026-81883

{"id": "CVE-2026-81883", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-81883", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-22T16:11:00.525508Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.3, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "radareorg", "product": "radare2", "versions": [{"status": "affected", "version": "< 6.2.0"}]}]}], "published": "2026-09-22T16:18:03.200", "references": [{"url": "https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/radareorg/radare2/issues/26228", "tags": ["Exploit", "Issue Tracking", "Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/radareorg/radare2/releases/tag/6.2.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/radareorg/radare2/issues/26228", "tags": ["Exploit", "Issue Tracking", "Mitigation", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "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."}], "lastModified": "2026-09-28T13:21:01.900", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "89E67591-1BCF-49F0-B047-71FCB5524CDB", "versionEndExcluding": "6.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}