Out-of-bounds Read Affecting radare2 package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-RADARE2-20067642
- published24 Sept 2026
- disclosed22 Sept 2026
Introduced: 22 Sep 2026
NewCVE-2026-81883 (opens in a new tab)How to fix?
There is no fixed version for Debian:unstable radare2.
NVD Description
Note: Versions mentioned in the description apply only to the upstream radare2 package and not the radare2 package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-81883
- https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3
- https://github.com/radareorg/radare2/releases/tag/6.2.0
- https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c
- https://github.com/radareorg/radare2/issues/26228