How severe is CVE-2004-1461?

CVE-2004-1461 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2004-1461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-1461?

CVE-2004-1461 primarily affects Cisco Secure Access Control Server. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-1461?

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-2004-1461 published?

CVE-2004-1461 was published on 2004-12-31 and last updated on 2026-06-16.

CVE-2004-1461

CVE-2004-1461 is a high-severity vulnerability in Cisco Secure Access Control Server 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% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Secure Access Control Server
Published: 2004-12-31
Last modified: 2026-06-16

Description

Cisco Secure Access Control Server (ACS) 3.2(3) and earlier spawns a separate unauthenticated TCP connection on a random port when a user authenticates to the ACS GUI, which allows remote attackers to bypass authentication by connecting to that port from the same IP address.

Frequently asked questions

What is CVE-2004-1461?: Cisco Secure Access Control Server (ACS) 3.2(3) and earlier spawns a separate unauthenticated TCP connection on a random port when a user authenticates to the ACS GUI, which allows remote attackers to bypass authentication by connecting to that port from the same IP address.
How severe is CVE-2004-1461?: CVE-2004-1461 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2004-1461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1461?: CVE-2004-1461 primarily affects Cisco Secure Access Control Server. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1461?: 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-2004-1461 published?: CVE-2004-1461 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:a:cisco:secure_access_control_server:3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.2:*:windows_server:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.2\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.2\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.2\(3\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_access_control_server:3.3\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_acs_solution_engine:*:*:*:*:*:*:*:*

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