{"id":"CVE-2026-81883","published":"2026-09-22T16:18:03.200","lastModified":"2026-09-28T13:21:01.900","description":"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.","cvssScore":3.3,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","cwes":["CWE-125"],"vendors":["radare"],"products":["radare2"],"references":[{"url":"https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3","tags":["Patch"]},{"url":"https://github.com/radareorg/radare2/issues/26228","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"https://github.com/radareorg/radare2/releases/tag/6.2.0","tags":["Release Notes"]},{"url":"https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c","tags":["Patch","Vendor Advisory"]},{"url":"https://github.com/radareorg/radare2/issues/26228","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]}],"exploitRefs":[{"url":"https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3","tags":["Patch"]},{"url":"https://github.com/radareorg/radare2/issues/26228","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"https://github.com/radareorg/radare2/releases/tag/6.2.0","tags":["Release Notes"]},{"url":"https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c","tags":["Patch","Vendor Advisory"]},{"url":"https://github.com/radareorg/radare2/issues/26228","tags":["Exploit","Issue Tracking","Mitigation","Vendor Advisory"]}],"hasPoc":true,"ai":null}