{"id":"CVE-2026-120740","aliases":["AZL-112744","DEBIAN-CVE-2026-120740","EUVD-2026-115639","GHSA-r95m-g8f5-qf3h","UBUNTU-CVE-2026-120740","openSUSE-SU-2026:12458-1"],"status":"published","title":"Hivex: hivex: denial of service via out-of-bounds read in big-data block processing","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","severity":{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00237,"percentile":0.14867,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2026-11-02T21:54:45Z","modified":"2026-11-07T17:23:15Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"hivex","fixed_in":["1.3.24-4.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.3.23-2"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.23-1","1.3.23-2","1.3.24-1","1.3.24-2","1.3.24-2.1","1.3.24-3"]},{"source":"osv","ecosystem":"Debian:13","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.24-1","1.3.24-2","1.3.24-2.1","1.3.24-3"]},{"source":"osv","ecosystem":"Debian:14","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.24-1","1.3.24-2","1.3.24-2.1","1.3.24-3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.11-1build1","1.3.12-1","1.3.13-1","1.3.13-1build1","1.3.13-1build2","1.3.13-1build3","1.3.13-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.14-1build4","1.3.14-3build1","1.3.14-4","1.3.14-4build1","1.3.15-1","1.3.15-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.18-1","1.3.18-1build1","1.3.18-2","1.3.18-2build1","1.3.18-2build2","1.3.18-2ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.19-1ubuntu3","1.3.21-1ubuntu1","1.3.21-1ubuntu4","1.3.21-1ubuntu5"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.23-1build2","1.3.23-1build3","1.3.23-1build4","1.3.23-1build6","1.3.23-1build7"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.24-2.1build2","1.3.24-3build0.1","1.3.24-3build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.24-1build6","1.3.24-1build7","1.3.24-2","1.3.24-2build1","1.3.24-2.1","1.3.24-2.1build1","1.3.24-2.1build2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"hivex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.24-4.1"}]}]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-120740","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2565405","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120740","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r95m-g8f5-qf3h"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-120740","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-120740","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-120740","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-120740","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-120740","title":"Hivex: hivex: denial of service via out-of-bounds read in big-data block processing","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","status":"published","published":"2026-11-02T21:54:45.435Z","modified":"2026-11-12T13:30:22.635Z","cvss":[{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-07T03:32:21.038338Z"}],"euvd":[{"id":"EUVD-2026-115639","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","status":"published","published":"2026-11-02T21:54:45Z","modified":"2026-11-12T13:30:22Z","cvss":[{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-07T03:08:10.162736Z"}],"ghsa":[{"id":"GHSA-r95m-g8f5-qf3h","title":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an...","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","status":"published","published":"2026-11-03T00:31:24Z","modified":"2026-11-03T00:31:29Z","cvss":[{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-125"],"updated_at":"2026-11-03T00:53:57.407227Z"}],"nvd":[{"id":"CVE-2026-120740","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","status":"published","published":"2026-11-02T22:17:21.313Z","modified":"2026-11-07T03:17:04.5Z","cvss":[{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-07T07:04:25.467195Z"}],"osv":[{"id":"DEBIAN-CVE-2026-120740","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","status":"published","published":"2026-11-02T22:17:21.313Z","modified":"2026-11-07T09:47:30.044513261Z","cvss":[{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-07T10:14:39.995311Z"},{"id":"UBUNTU-CVE-2026-120740","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","status":"published","published":"2026-11-02T22:17:00Z","modified":"2026-11-05T04:42:52Z","cvss":[{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-05T13:33:25.727744Z"},{"id":"AZL-112744","title":"CVE-2026-120740 affecting package hivex 1.3.23-2","description":"A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).","status":"published","published":"2026-11-02T22:17:21Z","modified":"2026-11-07T14:18:05.084266281Z","updated_at":"2026-11-07T14:48:11.583685Z"},{"id":"openSUSE-SU-2026:12458-1","title":"hivex-1.3.24-4.1 on GA media","description":"These are all security issues fixed in the hivex-1.3.24-4.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-11-06T00:00:00Z","modified":"2026-11-07T17:23:15.226262299Z","updated_at":"2026-11-07T17:50:39.727056Z"}]}}