{"id":"CVE-2026-25061","aliases":["DEBIAN-CVE-2026-25061","DLA-4478-1","EUVD-2026-4944","GHSA-q5q6-frrv-9rj6","MGASA-2026-0113","UBUNTU-CVE-2026-25061"],"status":"published","title":"tcpflow has TIM Element OOB Write in wifipcap","description":"tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.","severity":{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00574,"percentile":0.47907,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2026-01-29T21:42:47Z","modified":"2026-10-28T02:30:30Z","fixes":[{"ecosystem":"Debian:11","package":"tcpflow","fixed_in":["1.5.2+repack1-1+deb11u1"],"sources":["osv"]},{"ecosystem":"Mageia:9","package":"tcpflow","fixed_in":["1.6.1-3.1.mga9"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-2","1.6.1-3"]},{"source":"osv","ecosystem":"Debian:13","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-3"]},{"source":"osv","ecosystem":"Debian:14","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-3"]},{"source":"osv","ecosystem":"Debian:11","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.2+repack1-1+deb11u1"}]}],"versions":["1.5.2+repack1-1"]},{"source":"osv","ecosystem":"Mageia:9","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-3.1.mga9"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0+dfsg-2","1.4.3+repack1-1","1.4.4+repack1-1","1.4.4+repack1-2","1.4.4+repack1-2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.4+repack1-3","1.4.5+repack1-1","1.4.5+repack1-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.5+repack1-4","1.4.5+repack1-4build1","1.4.5+repack1-4build2","1.4.5+repack1-4ubuntu0.18.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.2+repack1-1build1","1.5.2+repack1-1build2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-1","1.6.1-2","1.6.1-2build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-3","1.6.1-3build1","1.6.1-3build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-3build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-3build3","1.6.1-3build4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"tcpflow","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1-3build2","1.6.1-3build3"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"digitalcorpora","product":"tcpflow"},{"vendor":"simsong","product":"tcpflow"}],"references":[{"url":"https://github.com/simsong/tcpflow/security/advisories/GHSA-q5q6-frrv-9rj6","tags":["x_refsource_CONFIRM","Exploit","Mitigation","Vendor Advisory","advisory","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2026/02/msg00014.html","tags":["Mailing List","Third Party Advisory","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25061.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25061","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-25061","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0113.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35327","tags":["report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CWJ2HTXROZUA6IP467KMWZFIYTXEGVZK/","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2026-25061","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-25061","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-25061","title":"tcpflow has TIM Element OOB Write in wifipcap","description":"tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.","status":"published","published":"2026-01-29T21:42:47.013Z","modified":"2026-02-10T20:14:00.298Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T13:41:19.694734Z"}],"euvd":[{"id":"EUVD-2026-4944","description":"tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.","status":"published","published":"2026-01-29T21:42:47Z","modified":"2026-02-10T20:14:00Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T19:48:41.699812Z"}],"nvd":[{"id":"CVE-2026-25061","description":"tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.","status":"published","published":"2026-01-29T22:15:55.797Z","modified":"2026-06-17T10:24:03.893Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:04.769088Z"}],"osv":[{"id":"CVE-2026-25061","title":"tcpflow has TIM Element OOB Write in wifipcap","description":"tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.","status":"published","published":"2026-01-29T21:42:47.013Z","modified":"2026-10-28T02:30:30.495314604Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:44:59.438965Z"},{"id":"DEBIAN-CVE-2026-25061","description":"tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.","status":"published","published":"2026-01-29T22:15:55.797Z","modified":"2026-10-01T03:03:00.852964093Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:53.877573Z"},{"id":"UBUNTU-CVE-2026-25061","description":"tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.","status":"published","published":"2026-01-29T22:15:00Z","modified":"2026-10-17T12:58:07.387402651Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:08.726452Z"},{"id":"DLA-4478-1","title":"tcpflow - security update","status":"published","published":"2026-02-10T00:00:00Z","modified":"2026-02-10T19:30:44.86695Z","updated_at":"2026-11-02T15:46:12.7027Z"},{"id":"MGASA-2026-0113","title":"Updated tcpflow packages fix security vulnerability","description":"tcpflow has TIM Element OOB Write in wifipcap. (CVE-2026-25061)\n","status":"published","published":"2026-05-07T05:06:13Z","modified":"2026-05-07T05:15:12.938808Z","updated_at":"2026-11-02T15:49:43.178336Z"}]}}