Back
CVE-2005-2451
Cisco IOS 12.0 through 12.4 and IOS XR before 3.2, with IPv6 enabled, allows remote attackers on a local network segment to cause a denial…
Low2.1EPSS 1.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Cisco IOS 12.0 through 12.4 and IOS XR before 3.2, with IPv6 enabled, allows remote attackers on a local network segment to cause a denial of service (device reload) and possibly execute arbitrary code via a crafted IPv6 packet.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low2.1 | AV:L/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 1.4% · top 27% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (10)
- 18332 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- VU#930892 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- cisco-ios-ipv6-packet-command-execution(21591) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- TA05-210A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 1014598 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20050729 IPv6 Crafted Packet Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- 20050729 Cisco IOS Shellcode Presentation (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 14414 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- oval:org.mitre.oval:def:5445 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 16272 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2005-2451)Record last updated .