Unrated severityNVD Advisory· Published Dec 31, 2005· Updated Jun 16, 2026
CVE-2005-4826
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2cpe:2.3:o:cisco:ios:12.1\(22\)ea3:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:cisco:ios:12.1\(22\)ea3:*:*:*:*:*:*:*
- (no CPE)range: =12.1(22)EA3
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
11- www.s21sec.com/en/avisos/s21sec-034-en.txtnvdVendor Advisory
- osvdb.org/33013nvd
- secunia.com/advisories/23892nvd
- securitytracker.com/idnvd
- www.blackhat.com/html/bh-europe-05/bh-eu-05-speakers.htmlnvd
- www.cisco.com/en/US/products/products_security_response09186a00807d1a81.htmlnvd
- www.securityfocus.com/archive/1/458240/100/0/threadednvd
- www.securityfocus.com/archive/1/458554/100/0/threadednvd
- www.securityfocus.com/bid/22268nvd
- www.vupen.com/english/advisories/2007/0414nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5544nvd
News mentions
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