How severe is CVE-2011-0951?

CVE-2011-0951 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-0951 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0951?

CVE-2011-0951 primarily affects Cisco Secure Access Control System. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-0951?

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

When was CVE-2011-0951 published?

CVE-2011-0951 was published on 2011-04-04 and last updated on 2026-06-16.

CVE-2011-0951

CVE-2011-0951 is a medium-severity vulnerability in Cisco Secure Access Control System with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-255.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Cisco Secure Access Control System
Published: 2011-04-04
Last modified: 2026-06-16

Description

The web-based management interface in Cisco Secure Access Control System (ACS) 5.1 before 5.1.0.44.6 and 5.2 before 5.2.0.26.3 allows remote attackers to change arbitrary user passwords via unspecified vectors, aka Bug ID CSCtl77440.

Frequently asked questions

What is CVE-2011-0951?: The web-based management interface in Cisco Secure Access Control System (ACS) 5.1 before 5.1.0.44.6 and 5.2 before 5.2.0.26.3 allows remote attackers to change arbitrary user passwords via unspecified vectors, aka Bug ID CSCtl77440.
How severe is CVE-2011-0951?: CVE-2011-0951 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-0951 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0951?: CVE-2011-0951 primarily affects Cisco Secure Access Control System. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-0951?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-0951 published?: CVE-2011-0951 was published on 2011-04-04 and last updated on 2026-06-16.

References

Affected products (11)

cpe:2.3:a:cisco:secure_access_control_system:5.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.1.0.44:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.1.0.44.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.1.0.44.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.1.0.44.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.1.0.44.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.1.0.44.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.2.0.26:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.2.0.26.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_system:5.2.0.26.2:*:*:*:*:*:*:*

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