CVE-2026-81881

3.3 LOWpublic exploit available

Published 2026-09-22 · Updated 2026-09-25

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 Mach-O Swift field-metadata parser was vulnerable because a relative Swift field pointer could be lower than the field-metadata section base, making subtraction produce a negative logical index. The vulnerability is triggered by parsing Swift type and class metadata from a crafted Mach-O file. The derived index was used to read four bytes immediately before the allocated field-metadata buffer. This can cause incorrect metadata processing 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, CWE-191

Vendors

radare

Products

radare2

Public exploit & PoC references

https://github.com/radareorg/radare2/commit/1da6e782df220edf56138ef5fe4f33745b04db74[Patch]
https://github.com/radareorg/radare2/issues/26229[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-q4w7-225g-64j9[Patch, 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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