{"id":"CVE-2026-22780","aliases":["EUVD-2026-5278","GHSA-f3v7-xhmj-9cjj","openSUSE-SU-2026:10141-1"],"status":"published","title":"Rizin has a heap overflow on mach0_chained_fixups.c","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.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00204,"percentile":0.10397,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2026-02-02T20:52:23Z","modified":"2026-11-11T02:48:49Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"rizin","fixed_in":["0.8.2-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"rizin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.2-1.1"}]}]}],"products":[{"vendor":"rizin","product":"rizin"},{"vendor":"rizinorg","product":"rizin"}],"references":[{"url":"https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory"]},{"url":"https://github.com/rizinorg/rizin/issues/5768","tags":["x_refsource_MISC","Issue Tracking","report"]},{"url":"https://github.com/rizinorg/rizin/pull/5770","tags":["x_refsource_MISC","Issue Tracking","fix"]},{"url":"https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L200","tags":["x_refsource_MISC","Patch","web"]},{"url":"https://github.com/rizinorg/rizin/releases/tag/v0.8.2","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22780.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22780","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-22780","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-22780","title":"Rizin has a heap overflow on mach0_chained_fixups.c","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.","status":"published","published":"2026-02-02T20:52:23.859Z","modified":"2026-02-03T15:37:25.089Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T13:39:05.585774Z"}],"euvd":[{"id":"EUVD-2026-5278","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.","status":"published","published":"2026-02-02T20:52:23Z","modified":"2026-02-03T15:37:25Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T19:48:45.084164Z"}],"nvd":[{"id":"CVE-2026-22780","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.","status":"published","published":"2026-02-02T23:16:06.87Z","modified":"2026-06-17T10:20:24.797Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:05.149641Z"}],"osv":[{"id":"CVE-2026-22780","title":"Rizin has a heap overflow on mach0_chained_fixups.c","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.","status":"published","published":"2026-02-02T20:52:23.859Z","modified":"2026-11-11T07:24:29.007710947Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-11T03:22:00.901153Z"},{"id":"openSUSE-SU-2026:10141-1","title":"rizin-0.8.2-1.1 on GA media","description":"These are all security issues fixed in the rizin-0.8.2-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-02-03T00:00:00Z","modified":"2026-03-23T04:54:30.288191Z","updated_at":"2026-11-02T16:58:38.101535Z"}]}}