Cisco Secure Access Control Server (ACS) 4.x for Windows uses the client's IP address and the server's port number to grant access to an HTTP server port for an administration session, which allows remote attackers to bypass authentication via various methods, aka "ACS Weak Session Management Vulnerability."
Published Jun 26, 2006
7.5
HIGHCVSS 2.0
EPSS 2.39%
Description
Cisco Secure Access Control Server (ACS) 4.x for Windows uses the client's IP address and the server's port number to grant access to an HTTP server port for an administration session, which allows remote attackers to bypass authentication via various methods, aka "ACS Weak Session Management Vulnerability."
Affected products
No data.
- 4.0
- 4.0.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.39% (0.02389) | 83.36th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.34% (0.02344) | 81.38th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.46% (0.01462) | 79.53th | v4 (v2025.03.14) |
| Dec 17, 2024 | 4.40% (0.04402) | 92.29th | v3 (v2023.03.01) |
| Oct 15, 2024 | 2.25% (0.02250) | 89.79th | v3 (v2023.03.01) |
| May 16, 2024 | 11.08% (0.11080) | 95.12th | v3 (v2023.03.01) |
| Mar 1, 2024 | 14.88% (0.14875) | 95.63th | v3 (v2023.03.01) |
| Jan 6, 2024 | 9.10% (0.09100) | 94.04th | v3 (v2023.03.01) |
| Nov 19, 2023 | 12.44% (0.12441) | 94.86th | v3 (v2023.03.01) |
| Sep 30, 2023 | 14.49% (0.14488) | 95.07th | v3 (v2023.03.01) |
| Aug 22, 2023 | 10.93% (0.10931) | 94.37th | v3 (v2023.03.01) |
| Jul 15, 2023 | 14.69% (0.14688) | 95.04th | v3 (v2023.03.01) |
| Jun 7, 2023 | 16.81% (0.16814) | 95.26th | v3 (v2023.03.01) |
| Apr 30, 2023 | 5.82% (0.05823) | 92.24th | v3 (v2023.03.01) |
| Mar 23, 2023 | 2.53% (0.02530) | 88.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.25% (0.02249) | 87.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
No CWE recorded.
References (10)
- http://secunia.com/advisories/20816 third-party-advisoryx_refsource_SECUNIA
- http://securityreason.com/securityalert/1157 third-party-advisoryx_refsource_SREASON
- http://securitytracker.com/id?1016369 vdb-entryx_refsource_SECTRACK
- http://www.cisco.com/en/US/products/sw/secursw/ps2086/tsd_products_security_response09186a00806c68f9.html vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.osvdb.org/26825 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/archive/1/438161/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/438258/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/18621 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/2524 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/27328 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/20816 | third-party-advisoryx_refsource_SECUNIA | |
| http://securityreason.com/securityalert/1157 | third-party-advisoryx_refsource_SREASON | |
| http://securitytracker.com/id?1016369 | vdb-entryx_refsource_SECTRACK | |
| http://www.cisco.com/en/US/products/sw/secursw/ps2086/tsd_products_security_response09186a00806c68f9.html | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.osvdb.org/26825 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/archive/1/438161/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/archive/1/438258/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/18621 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2006/2524 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/27328 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.