CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to bypass LDAP…
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to bypass LDAP authentication on the server if the LDAP server allows null passwords.
Why it matters now
EPSS 0.01692 77th 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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:secure_access_control_server:2.1:*:windows_nt:*:*:*:*:* | 2.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:2.3\(3\):*:windows_nt:*:*:*:*:* | 2.3(3) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_server:2.4\(2\):*:windows_nt:*:*:*:*:* | 2.4(2) | Vulnerable | Cisco |
- cpe:2.3:a:cisco:secure_access_control_server:2.1:*:windows_nt:*:*:*:*:* Versions 2.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:2.3\(3\):*:windows_nt:*:*:*:*:* Versions 2.3(3) Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_server:2.4\(2\):*:windows_nt:*:*:*:*:* Versions 2.4(2) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2000-1056
- 2026-10-03 Alias added: GHSA-5rvg-rpvg-3vmc
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-2013-03026 The EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before… CVSS 2.0HIGH 9.3
Sources
- CVE-2000-1056 · CVE Program
- CVE-2000-1056 · NVD
- FIRST EPSS
- GHSA-5rvg-rpvg-3vmc · 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