Unrated severityNVD Advisory· Published Dec 21, 2005· Updated Jun 16, 2026
CVE-2005-4436
CVE-2005-4436
Description
Extended Interior Gateway Routing Protocol (EIGRP) 1.2, as implemented in Cisco IOS after 12.3(2), 12.3(3)B, and 12.3(2)T and other products, allows remote attackers to cause a denial of service by sending a "spoofed neighbor announcement" with (1) mismatched k values or (2) "goodbye message" Type-Length-Value (TLV).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: >=12.3(2), >=12.3(3)B, >=12.3(2)T
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
7- lists.grok.org.uk/pipermail/full-disclosure/2005-December/040330.htmlnvdVendor Advisory
- marc.infonvd
- securitytracker.com/idnvd
- www.securityfocus.com/archive/1/419898/100/0/threadednvd
- www.securityfocus.com/bid/15978nvd
- www.vupen.com/english/advisories/2005/3008nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5454nvd
News mentions
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