{"id":"CVE-2011-1496","aliases":["DEBIAN-CVE-2011-1496","DSA-2212-1","EUVD-2011-1499","GHSA-ph56-qx6x-j8xv"],"status":"published","title":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp...","description":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.","severity":{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00952,"percentile":0.61541,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-264"],"published":"2011-04-07T00:00:00Z","modified":"2026-10-23T17:47:40Z","exploits":[{"source":"exploitdb","id":"EDB-17147","title":"tmux 1.3/1.4 - '-S' Option Incorrect SetGID Privilege Escalation","type":"local","platform":"linux","date":"2011-04-11","url":"https://www.exploit-db.com/exploits/17147"}],"fixes":[{"ecosystem":"Debian:12","package":"tmux","fixed_in":["1.4-6"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tmux","fixed_in":["1.4-6"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tmux","fixed_in":["1.4-6"],"sources":["osv"]},{"ecosystem":"Debian:6.0","package":"tmux","fixed_in":["1.3-2+squeeze1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tmux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4-6"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"tmux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4-6"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"tmux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4-6"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"tmux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3-2+squeeze1"}]}],"versions":["1.3-2","1.3-2+squeeze1~bpo50+1"]}],"products":[{"vendor":"nicholas_marriott","product":"tmux"}],"references":[{"url":"http://www.vupen.com/english/advisories/2011/1015","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://secunia.com/advisories/44081","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://secunia.com/advisories/44239","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.exploit-db.com/exploits/17147","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","evidence"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058452.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/47283","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://www.debian.org/security/2011/dsa-2212","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/0897","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/1002","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058548.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058367.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66693","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1496"},{"url":"https://github.com/advisories/GHSA-ph56-qx6x-j8xv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-1496","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-1496","description":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.","status":"published","published":"2011-04-18T18:00:00Z","modified":"2024-08-06T22:28:41.659Z","updated_at":"2026-11-02T14:35:38.711857Z"}],"euvd":[{"id":"EUVD-2011-1499","description":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.","status":"published","published":"2011-04-18T18:00:00Z","modified":"2024-08-06T22:28:41Z","updated_at":"2026-11-03T01:55:56.243798Z"}],"ghsa":[{"id":"GHSA-ph56-qx6x-j8xv","title":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp...","description":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.","status":"published","published":"2022-05-17T02:00:34Z","modified":"2023-02-03T05:06:54Z","updated_at":"2026-11-02T14:53:57.460736Z"}],"nvd":[{"id":"CVE-2011-1496","description":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.","status":"published","published":"2011-04-18T18:55:01.077Z","modified":"2026-06-16T23:29:29.81Z","cvss":[{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:07.221228Z"}],"osv":[{"id":"CVE-2011-1496","description":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.","status":"published","published":"2011-04-18T18:55:01Z","modified":"2026-04-10T03:41:43.313047Z","updated_at":"2026-11-02T15:43:57.991581Z"},{"id":"DEBIAN-CVE-2011-1496","description":"tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.","status":"published","published":"2011-04-18T18:55:01.077Z","modified":"2026-10-23T17:47:40.93217805Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"DSA-2212-1","title":"tmux - privilege escalation","status":"published","published":"2011-04-07T00:00:00Z","modified":"2026-03-09T01:17:50.029756Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}