How severe is CVE-2005-2631?

CVE-2005-2631 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2005-2631 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-2631?

CVE-2005-2631 primarily affects Cisco Network Admission Control Manager And Server System Software. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-2631?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2005-2631 published?

CVE-2005-2631 was published on 2005-08-23 and last updated on 2026-06-16.

CVE-2005-2631

CVE-2005-2631 is a high-severity vulnerability in Cisco Network Admission Control Manager And Server System Software with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Network Admission Control Manager And Server System Software
Published: 2005-08-23
Last modified: 2026-06-16

Description

Cisco Clean Access (CCA) 3.3.0 to 3.3.9, 3.4.0 to 3.4.5, and 3.5.0 to 3.5.3 does not properly authenticate users when invoking API methods, which could allow remote attackers to bypass security checks, change the assigned role of a user, or disconnect users.

Frequently asked questions

What is CVE-2005-2631?: Cisco Clean Access (CCA) 3.3.0 to 3.3.9, 3.4.0 to 3.4.5, and 3.5.0 to 3.5.3 does not properly authenticate users when invoking API methods, which could allow remote attackers to bypass security checks, change the assigned role of a user, or disconnect users.
How severe is CVE-2005-2631?: CVE-2005-2631 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-2631 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-2631?: CVE-2005-2631 primarily affects Cisco Network Admission Control Manager And Server System Software. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-2631?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2005-2631 published?: CVE-2005-2631 was published on 2005-08-23 and last updated on 2026-06-16.

References

Affected products (20)

cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.9:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.5.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.5.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.5.3:*:*:*:*:*:*:*

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