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).
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Affected products
1- Range: >=12.3(2), >=12.3(3)B, >=12.3(2)T
Patches
Vulnerability mechanics
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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