Is CVE-2012-5424 being actively exploited?

CVE-2012-5424 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-5424?

CVE-2012-5424 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2012-5424

MEDIUM · CVSS 5.0EPSS 2.5%EU EUVD

Cisco Secure Access Control System (ACS) 5.x before 5.2 Patch 11 and 5.3 before 5.3 Patch 7, when a certain configuration involving TACACS+ and LDAP is used, does not properly validate passwords, which allows remote attackers to bypass authentication by sending a valid username and a crafted password string, aka Bug ID CSCuc65634.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-20
EPSS score: 2.5% (84th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-5343)
Published: November 7, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-5343 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

cisco / secure access control server
cisco / secure access control server
cisco / secure access control server
cisco / secure access control server

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Cisco Nexus 5000 Series Switch w/2000 Series Fabric Extenders running s/w NX-OS v5.0(3)N1(1c), and Cisco Secure Access Control Server (ACS) running s/w v5.2 patch 3 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-10384-2011 - archived
Cisco Nexus 7000 Series Switch running Software version NX-OS version 5.1(a) and Cisco Secure Access Control Server (ACS) running version 5.2 patch 3 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-10349-2011 - archived

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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