PatchSiren cyber security CVE debrief
CVE-2026-45613 rizinorg CVE debrief
A heap-buffer-overflow vulnerability exists in Rizin, a UNIX-like reverse engineering framework and command-line toolset. The flaw is located in the OMF (Object Module Format) binary parser at librz/bin/format/omf/omf.c. The vulnerability has been assigned a CVSS 3.1 score of 3.3 (Low severity), indicating limited impact due to local attack vector requirements and user interaction needed for exploitation. The issue was disclosed on May 29, 2026, with a fix committed the same day.
- Vendor
- rizinorg
- Product
- rizin
- CVSS
- LOW 3.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-29
- Original CVE updated
- 2026-05-29
- Advisory published
- 2026-05-29
- Advisory updated
- 2026-05-29
Who should care
Organizations using Rizin for reverse engineering or binary analysis, particularly those processing OMF format files from untrusted sources. Security teams in malware analysis and forensics environments where automated processing of unknown binaries occurs.
Technical summary
The vulnerability is a heap-buffer-overflow (CWE-125) in Rizin's OMF binary format parser. The OMF format is an older object file format used in x86 development environments. The flaw occurs during parsing of OMF files in librz/bin/format/omf/omf.c. Exploitation requires a local attacker to provide a malicious OMF file that a user then opens with Rizin, limiting practical attack scenarios. The fix was implemented in commit e6d0937c8a083e23ed76ccfb9f631cdc50c7af47.
Defensive priority
low
Recommended defensive actions
- Upgrade Rizin to a version containing commit e6d0937c8a083e23ed76ccfb9f631cdc50c7af47 or later
- Review and restrict processing of untrusted OMF binary files in production environments
- Monitor Rizin security advisories for additional hardening recommendations
Evidence notes
CVE published and modified 2026-05-29. Fix commit e6d0937c8a083e23ed76ccfb9f631cdc50c7af47 dated same day per source metadata. CVSS vector AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N confirms local attack surface with user interaction required.
Official resources
2026-05-29