How severe is CVE-2012-5424?

CVE-2012-5424 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-5424 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5424?

CVE-2012-5424 primarily affects Cisco Secure Access Control Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-5424?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-5424 published?

CVE-2012-5424 was published on 2012-11-07 and last updated on 2026-06-16.

CVE-2012-5424

CVE-2012-5424 is a medium-severity vulnerability in Cisco Secure Access Control Server with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Secure Access Control Server
Published: 2012-11-07
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2012-5424?: 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.
How severe is CVE-2012-5424?: CVE-2012-5424 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-5424 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5424?: CVE-2012-5424 primarily affects Cisco Secure Access Control Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-5424?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-5424 published?: CVE-2012-5424 was published on 2012-11-07 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:cisco:secure_access_control_server:5.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:5.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:5.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:5.3:*:*:*:*:*:*:*

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