{"id":"CVE-2006-2450","aliases":["DEBIAN-CVE-2006-2450","EUVD-2006-2451","GHSA-ghjj-rq7v-wjhm","openSUSE-SU-2024:10598-1"],"status":"published","title":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in...","description":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as \"Type 1 - None\", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.04363,"percentile":0.91314,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2006-07-14T22:00:00Z","modified":"2026-10-22T23:47:25Z","fixes":[{"ecosystem":"Debian:12","package":"libvncserver","fixed_in":["0.8.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libvncserver","fixed_in":["0.8.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libvncserver","fixed_in":["0.8.2-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libvncserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libvncserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libvncserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.2-1"}]}]}],"products":[{"vendor":"libvncserver","product":"libvncserver"}],"references":[{"url":"http://www.novell.com/linux/security/advisories/2006_42_kernel.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","advisory"]},{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=376824","tags":["x_refsource_MISC","x_transferred","Patch","fix"]},{"url":"http://secunia.com/advisories/24525","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2006/2797","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/21349","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://security.gentoo.org/glsa/glsa-200608-05.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"http://security.gentoo.org/glsa/glsa-200703-19.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"http://sourceforge.net/project/shownotes.php?release_id=431724\u0026group_id=32584","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"http://secunia.com/advisories/20940","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor 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in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as \"Type 1 - None\", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.","status":"published","published":"2006-07-14T22:00:00Z","modified":"2024-08-07T17:51:04.809Z","updated_at":"2026-11-02T14:33:49.265317Z"}],"euvd":[{"id":"EUVD-2006-2451","description":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as \"Type 1 - None\", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.","status":"published","published":"2006-07-14T22:00:00Z","modified":"2024-08-07T17:51:04Z","updated_at":"2026-11-03T01:16:00.485318Z"}],"ghsa":[{"id":"GHSA-ghjj-rq7v-wjhm","title":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in...","description":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as \"Type 1 - None\", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.","status":"published","published":"2022-05-01T06:59:15Z","modified":"2023-01-31T05:01:11Z","updated_at":"2026-11-02T14:48:00.503412Z"}],"nvd":[{"id":"CVE-2006-2450","description":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as \"Type 1 - None\", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.","status":"published","published":"2006-07-18T15:40:00Z","modified":"2026-06-16T22:25:02.32Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:01:04.288594Z"}],"osv":[{"id":"CVE-2006-2450","description":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as \"Type 1 - None\", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.","status":"published","published":"2006-07-18T15:40:00Z","modified":"2026-04-10T03:38:28.207866Z","updated_at":"2026-11-02T15:43:56.581247Z"},{"id":"DEBIAN-CVE-2006-2450","description":"auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as \"Type 1 - None\", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.","status":"published","published":"2006-07-18T15:40:00Z","modified":"2026-10-22T23:47:25.302485781Z","updated_at":"2026-11-02T15:45:23.105674Z"},{"id":"openSUSE-SU-2024:10598-1","title":"LibVNCServer-devel-0.9.13-3.1 on GA media","description":"These are all security issues fixed in the LibVNCServer-devel-0.9.13-3.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:15:49.041318Z","updated_at":"2026-11-02T16:58:34.487567Z"}]}}