Cisco ASA Secondary Authentication Bypass Vulnerability
Priority LOW 34CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
A vulnerability in the Cisco ASA that could allow a remote attacker to successfully authenticate using the Cisco AnyConnect VPN client if the Secondary Authentication type is LDAP and the password is left blank, providing the primary credentials are correct. The vulnerabilities is due to improper input validation of certain parameters passed to the affected software. An attacker must have the correct primary credentials in order to successfully exploit this vulnerability.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00858 58th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco ASA | 8.4(1) | — | No fix listed | CNA |
- Cisco ASA VendorCisco Affected 8.4(1) Fixed in — No fix listed CNA
CPE configurations NVD · 24
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:asa_5500_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5510_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5512-x_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5515-x_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5520_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:asa_5500_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5510_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5512-x_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5515-x_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5520_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 14 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:asa_5525-x_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5540_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5545-x_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5550_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5555-x_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5580_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asa_5585-x_firmware:8.4\(1\):*:*:*:*:*:*:* | 8.4(1) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:asa_5525-x_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5540_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5545-x_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5550_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5555-x_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5580_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asa_5585-x_firmware:8.4\(1\):*:*:*:*:*:*:* Versions 8.4(1) Vulnerable ·Cisco
- cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2011-2054
- 2026-10-03 Alias added: GHSA-8w62-hmc9-cq72
References
More Cisco Asa 5500 Firmware vulnerabilities
- TI-2019-01275 Cisco Secure Boot Hardware Tampering Vulnerability CVSS 3.1MEDIUM 6.7
Sources
- CVE-2011-2054 · CVE Program
- CVE-2011-2054 · NVD
- FIRST EPSS
- GHSA-8w62-hmc9-cq72 · 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