{"id":"CVE-2005-4826","aliases":["EUVD-2005-4819","GHSA-x2rx-8768-8678"],"status":"published","title":"Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on...","description":"Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst 2950T switches allows remote attackers to cause a denial of service (device reboot) via a crafted Subset-Advert message packet, a different issue than CVE-2006-4774, CVE-2006-4775, and CVE-2006-4776.","severity":{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01019,"percentile":0.63568,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2005-12-31T05:00:00Z","modified":"2026-06-16T22:19:31Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://securitytracker.com/id?1017568","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://secunia.com/advisories/23892","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://osvdb.org/33013","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.cisco.com/en/US/products/products_security_response09186a00807d1a81.html","tags":["vendor-advisory","x_refsource_CISCO","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2007/0414","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5544","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/458554/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.blackhat.com/html/bh-europe-05/bh-eu-05-speakers.html#Berrueta","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securityfocus.com/bid/22268","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.s21sec.com/en/avisos/s21sec-034-en.txt","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/458240/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2005-4826"},{"url":"https://github.com/advisories/GHSA-x2rx-8768-8678"}],"sources":{"cve":[{"id":"CVE-2005-4826","description":"Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst 2950T switches allows remote attackers to cause a denial of service (device reboot) via a crafted Subset-Advert message packet, a different issue than CVE-2006-4774, CVE-2006-4775, and CVE-2006-4776.","status":"published","published":"2007-01-31T11:00:00Z","modified":"2024-08-08T00:01:23.434Z","updated_at":"2026-11-02T14:33:38.906611Z"}],"euvd":[{"id":"EUVD-2005-4819","description":"Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst 2950T switches allows remote attackers to cause a denial of service (device reboot) via a crafted Subset-Advert message packet, a different issue than CVE-2006-4774, CVE-2006-4775, and CVE-2006-4776.","status":"published","published":"2007-01-31T11:00:00Z","modified":"2024-08-08T00:01:23Z","updated_at":"2026-11-03T01:15:21.029087Z"}],"ghsa":[{"id":"GHSA-x2rx-8768-8678","title":"Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on...","description":"Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst 2950T switches allows remote attackers to cause a denial of service (device reboot) via a crafted Subset-Advert message packet, a different issue than CVE-2006-4774, CVE-2006-4775, and CVE-2006-4776.","status":"published","published":"2022-05-01T02:31:07Z","modified":"2023-01-31T05:00:24Z","updated_at":"2026-11-02T14:47:51.48849Z"}],"nvd":[{"id":"CVE-2005-4826","description":"Unspecified vulnerability in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(22)EA3 on Catalyst 2950T switches allows remote attackers to cause a denial of service (device reboot) via a crafted Subset-Advert message packet, a different issue than CVE-2006-4774, CVE-2006-4775, and CVE-2006-4776.","status":"published","published":"2005-12-31T05:00:00Z","modified":"2026-06-16T22:19:31.513Z","cvss":[{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:59.170202Z"}]}}