CVE-2026-22780

Rizin has a heap overflow on mach0_chained_fixups.c

MEDIUM
6.1
CVSS Score
Published: February 2, 2026 at 08:52 PM UTC
Updated: June 17, 2026 at 10:20 AM UTC
2 products affected across 2 vendorsRizinRizin

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.8.2
v < 0.8.2
Affected range stops below 0.8.2, so it looks safe — our inference, not a vendor statement

References (6)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-770

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