CVE-2026-81883

3.3 LOWpublic exploit available

Published 2026-09-22 · Updated 2026-09-28

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weaknesses

CWE-125

Vendors

radare

Products

radare2

Public exploit & PoC references

https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3[Patch]
https://github.com/radareorg/radare2/issues/26228[Exploit, Issue Tracking, Mitigation, Vendor Advisory]
https://github.com/radareorg/radare2/releases/tag/6.2.0[Release Notes]
https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c[Patch, Vendor Advisory]
https://github.com/radareorg/radare2/issues/26228[Exploit, Issue Tracking, Mitigation, Vendor Advisory]

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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