The EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before…
Priority MEDIUM 48CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
The EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before 4.2.1.15.11, when a RADIUS server configuration is enabled, does not properly parse user identities, which allows remote attackers to execute arbitrary commands via crafted EAP-FAST packets, aka Bug ID CSCui57636.
Why it matters now
EPSS 0.05122 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:secure_access_control_server:*:*:*:*:*:*:*:* | up to 4.2.1.15.10 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.0:*:*:*:*:*:*:* | 4.2.1.15.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.1:*:*:*:*:*:*:* | 4.2.1.15.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.2:*:*:*:*:*:*:* | 4.2.1.15.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.3:*:*:*:*:*:*:* | 4.2.1.15.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.4:*:*:*:*:*:*:* | 4.2.1.15.4 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.6:*:*:*:*:*:*:* | 4.2.1.15.6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.7:*:*:*:*:*:*:* | 4.2.1.15.7 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.8:*:*:*:*:*:*:* | 4.2.1.15.8 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.9:*:*:*:*:*:*:* | 4.2.1.15.9 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:secure_access_control_server:*:*:*:*:*:*:*:* Versions up to 4.2.1.15.10 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.0:*:*:*:*:*:*:* Versions 4.2.1.15.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.1:*:*:*:*:*:*:* Versions 4.2.1.15.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.2:*:*:*:*:*:*:* Versions 4.2.1.15.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.3:*:*:*:*:*:*:* Versions 4.2.1.15.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.4:*:*:*:*:*:*:* Versions 4.2.1.15.4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.6:*:*:*:*:*:*:* Versions 4.2.1.15.6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.7:*:*:*:*:*:*:* Versions 4.2.1.15.7 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.8:*:*:*:*:*:*:* Versions 4.2.1.15.8 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:4.2.1.15.9:*:*:*:*:*:*:* Versions 4.2.1.15.9 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-3466
- 2026-10-03 Alias added: GHSA-w8rq-f28j-855v
References
More Cisco Secure Access Control Server vulnerabilities
- TI-2005-00319 Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with… CVSS 2.0MEDIUM 5.0
- TI-2006-03972 Stack-based buffer overflow in the CSRadius service in Cisco Secure Access Control Server… CVSS 2.0HIGH 10.0
- TI-2004-00996 Cisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access… CVSS 2.0HIGH 10.0
- TI-2000-01044 Buffer overflow in CSAdmin module in CiscoSecure ACS Server 2.4(2) and earlier allows… CVSS 2.0HIGH 10.0
- TI-2000-01045 Buffer overflow in CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to… CVSS 2.0HIGH 10.0
- TI-2007-00100 Stack-based buffer overflow in the CSAdmin service in Cisco Secure Access Control Server… CVSS 2.0HIGH 7.5
Sources
- CVE-2013-3466 · CVE Program
- CVE-2013-3466 · NVD
- FIRST EPSS
- GHSA-w8rq-f28j-855v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences