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CVE-2013-3466

25
FAUCET Score

CVE-2013-3466 describes a critical vulnerability in Cisco Secure Access Control Server (ACS) 4.x, specifically within the EAP-FAST authentication module when a RADIUS server is configured. This flaw allows remote attackers to execute arbitrary commands by sending specially crafted EAP-FAST packets due to improper parsing of user identities. With a CVSS score of 9.3, this vulnerability poses a severe risk, enabling complete compromise of confidentiality, integrity, and availability with low attack complexity and no authentication required. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.1.15.10CPE matchmatch criteria
cpe:2.3:a:cisco:secure_access_control_server:*:*:*:*:*:*:*:*
4.2.1.15.0CPE matchmatch criteria
cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.0:*:*:*:*:*:*:*
4.2.1.15.1CPE matchmatch criteria
cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.1:*:*:*:*:*:*:*
4.2.1.15.2CPE matchmatch criteria
cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.2:*:*:*:*:*:*:*
4.2.1.15.3CPE matchmatch criteria
cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.12%
Probability of exploitation in next 30 days
EPSS Percentile
91.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0512 is in the 60th percentile among its peer group of 8,914 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

osvdb.org / 96668
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20130828-acs
Vendor Advisory
securitytracker.com / id/1028958
Third Party AdvisoryVDB Entry