CVE-2005-2451

Cisco IOS 12.0 through 12.4 and IOS XR before 3.2, with IPv6 enabled, allows remote attackers on...

2.1 Low

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.

Exploit likelihood

1.41%Down 6.1 points since Feb 4, 2022

What each source reports

NVD Score used 2.1

Record: CVE-2005-2451
CVSS 2.0: 2.1 LowAV:L/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2005-2451
Updated: 2026-11-02

EUVDEUVD-2005-2452 No score

Record: EUVD-2005-2452
Updated: 2026-11-03

GitHub AdvisoriesGHSA-79vm-c3cm-gq5h No score

Cisco IOS 12.0 through 12.4 and IOS XR before 3.2, with IPv6 enabled, allows remote attackers on...

Record: GHSA-79vm-c3cm-gq5h
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2005-2451 is a low vulnerability (CVSS 2.1) in Cisco Ios, published August 3, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.41%, the 72nd percentile. No source names a fixed version.

References

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