CVE-2026-22780 json
Rizin has a heap overflow on mach0_chained_fixups.c
published 9mo ago modified 4mo ago also EUVD-2026-5278
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 10%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Is CVE-2026-22780 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-22780 updated cvss 6.1
Rizin: Rizin: Heap overflow allows arbitrary code execution via malicious mach0 file
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 9mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H |
Affected products
- rizinorg rizin
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
github.com
/rizinorg/rizin/pull/5770
issue-tracking
-
github.com
/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989
patch
-
github.com
/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj
patch, vendor-advisory
-
github.com
/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L2
patch
-
github.com
/rizinorg/rizin/issues/5768
issue-tracking
-
github.com
/rizinorg/rizin/releases/tag/v0.8.2
product, release-notes
Sources
- CVE List CVE-2026-22780
- NVD CVE-2026-22780
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.