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CVE-2005-2451

11
FAUCET Score

CVE-2005-2451 describes a denial-of-service vulnerability affecting Cisco IOS versions 12.0 through 12.4 and IOS XR prior to 3.2, specifically when IPv6 is enabled. A remote attacker on the local network segment can trigger a device reload and potentially execute arbitrary code by sending a specially crafted IPv6 packet. The vulnerability has a low CVSS score of 2.1, indicating low attack complexity and local access requirements, with a primary impact of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.0sCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:*
12.0slCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0sl:*:*:*:*:*:*:*
12.0stCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0st:*:*:*:*:*:*:*
12.0syCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0sy:*:*:*:*:*:*:*
12.1xuCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.1xu:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

AV:L/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 94th percentile among its peer group of 2,096 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/fulldisclosure/2005-07/0663.html
secunia.com / advisories/16272
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/21591
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5445
cisco.com / warp/public/707/cisco-sa-20050729-ipv6.shtml
PatchVendor Advisory
kb.cert.org / vuls/id/930892
US Government Resource
osvdb.org / 18332
securityfocus.com / bid/14414
us-cert.gov / cas/techalerts/TA05-210A.html
US Government Resource