{"cve":"CVE-2005-4826","nvd":{"published":"2005-12-31T05:00:00.000","modified":"2026-06-16T22:19:31.513","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://osvdb.org/33013","http://secunia.com/advisories/23892","http://securitytracker.com/id?1017568","http://www.blackhat.com/html/bh-europe-05/bh-eu-05-speakers.html#Berrueta","http://www.cisco.com/en/US/products/products_security_response09186a00807d1a81.html"],"products":["cisco:ios"],"source":"nvd","synced_at":"2026-10-19T19:40:09.211843075+00:00"},"epss":{"cve":"CVE-2005-4826","score":0.01019,"percentile":0.63376,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}