CVE-2026-22780 MEDIUM

CVE-2026-22780: Rizin has a heap overflow on mach0_chained_fixups.c

Vendor Rizinorg
Product rizin
Weakness CWE-770 · Uncontrolled resource consumption
Published February 2, 2026
Last update February 3, 2026

CVSS base score

4.4/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Rizin is a UNIX-like reverse engineering framework and command-line toolset. Prior to 0.8.2, a heap overflow can be exploited when a malicious mach0 file, having bogus entries for the dyld chained segments, is parsed by rizin. This vulnerability is fixed in 0.8.2.

Key dates

02Disclosure timeline

February 2, 2026 CVE published
February 3, 2026 Record updated