Out-of-bounds Read Affecting radare2 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-RADARE2-20067739
  • published24 Sept 2026
  • disclosed22 Sept 2026

Introduced: 22 Sep 2026

NewCVE-2026-81881  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-191  (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 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 Base Scores

version 3.1