{"id":"CVE-2026-111131","aliases":["DEBIAN-CVE-2026-111131","EUVD-2026-102362","GHSA-5xv9-8cq8-34q7","UBUNTU-CVE-2026-111131"],"status":"published","title":"libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00197,"percentile":0.09586,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-10-15T18:57:26Z","modified":"2026-10-28T17:50:35Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.0-2","4.6.0-1","4.6.0-2","4.6.0-3","4.6.0-3~bpo12+1","4.6.1-1","4.6.1-2","4.6.2-1","4.6.2-2","4.6.3-1","4.6.3-2","4.7.0-1","4.7.1-1","4.7.2-1","4.7.3-1","4.7.4-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-2","4.6.3-1","4.6.3-2","4.7.0-1","4.7.1-1","4.7.2-1","4.7.3-1","4.7.4-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-2","4.6.3-1","4.6.3-2","4.7.0-1","4.7.1-1","4.7.2-1","4.7.3-1","4.7.4-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.9-1","4.3.10-1","4.3.11-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-3","4.5.0-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.0-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.3-1","4.7.0-1","4.7.1-1","4.7.2-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libxmp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-2","4.6.3-1"]}],"products":[{"vendor":"libxmp","product":"libxmp"}],"references":[{"url":"https://hackmd.io/@haind-pwn/libxmp-p61a-sample-backreference-oob-read","tags":["technical-description","exploit","article","report"]},{"url":"https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L110-L116","tags":["technical-description","article","report"]},{"url":"https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L638-L641","tags":["technical-description","article","report"]},{"url":"https://github.com/libxmp/libxmp","tags":["product","package","report"]},{"url":"https://www.vulncheck.com/advisories/libxmp-through-4.7.4-stack-out-of-bounds-read-via-p61a-depacker","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111131","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5xv9-8cq8-34q7"},{"url":"https://github.com","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111131.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-111131","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-111131","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-111131","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-111131","title":"libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","status":"published","published":"2026-10-15T18:57:26.487Z","modified":"2026-10-15T19:50:44.959Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:20:15.34316Z"}],"euvd":[{"id":"EUVD-2026-102362","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","status":"published","published":"2026-10-15T18:57:26Z","modified":"2026-10-15T19:50:44Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:00:10.305867Z"}],"ghsa":[{"id":"GHSA-5xv9-8cq8-34q7","title":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the...","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","status":"published","published":"2026-10-15T21:36:03Z","modified":"2026-10-15T21:36:11Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:13:49.297576Z"}],"nvd":[{"id":"CVE-2026-111131","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","status":"published","published":"2026-10-15T19:17:26.66Z","modified":"2026-10-16T18:25:45.343Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","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:L/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:59.751798Z"}],"osv":[{"id":"CVE-2026-111131","title":"libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","status":"published","published":"2026-10-15T18:57:26.487Z","modified":"2026-10-28T02:30:27.085600305Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:44:55.61515Z"},{"id":"DEBIAN-CVE-2026-111131","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","status":"published","published":"2026-10-15T19:17:26.66Z","modified":"2026-10-23T18:05:19.184202805Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:49.824149Z"},{"id":"UBUNTU-CVE-2026-111131","description":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","status":"published","published":"2026-10-15T19:17:00Z","modified":"2026-10-28T17:50:35Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:59.591851Z"}]}}