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CVE-2005-4436
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…
High7.8EPSS 2.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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).
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (7)
- 15978 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- ADV-2005-3008 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 20051220 Re: Unauthenticated EIGRP DoS (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20051219 Unauthenticated EIGRP DoS (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20051220 RE: Authenticated EIGRP DoS / Information leak (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- oval:org.mitre.oval:def:5454 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 1015382 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2005-4436)Record last updated .