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CVE-2005-3921

12
FAUCET Score

CVE-2005-3921 describes a Cross-site Scripting (XSS) vulnerability in the Cisco IOS Web Server, specifically affecting IOS version 12.0(2a). This flaw allows remote attackers to inject arbitrary web script or HTML through crafted packets viewed by an administrator via the HTTP interface to memory buffers or through Cisco Discovery Protocol (CDP) packets with HTML payloads displayed on CDP status pages. The vulnerability has a low CVSS score of 2.6, indicating a network-based attack with high access complexity, requiring no authentication, and resulting in only partial integrity impact. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage, suggesting it is not a widely targeted vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 12.3CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
12.3\(1a\)CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(1a\):*:*:*:*:*:*:*
12.3\(2\)jaCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(2\)ja:*:*:*:*:*:*:*
12.3\(2\)ja5CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(2\)ja5:*:*:*:*:*:*:*
12.3\(2\)jkCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(2\)jk:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.76%
Probability of exploitation in next 30 days
EPSS Percentile
84.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0276 is in the 83rd percentile among its peer group of 1,506 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, 0.1 Bluesky, 0.0 Mastodon, and 0.3 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

secunia.com / advisories/17780
secunia.com / advisories/18528
securityreason.com / securityalert/227
securitytracker.com / id
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5867
cisco.com / warp/public/707/cisco-sa-20051201-http.shtml
idefense.com / intelligence/vulnerabilities/display.php
infohacking.com / INFOHACKING_RESEARCH/Our_Advisories/cisco/index.html
ExploitVendor Advisory
securityfocus.com / archive/1/417916/100/0/threaded
securityfocus.com / bid/15602
Exploit
securityfocus.com / bid/16291
vupen.com / english/advisories/2005/2657