The default configuration of the RADIUS authentication feature on the Cisco Network…
Priority LOW 26CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
The default configuration of the RADIUS authentication feature on the Cisco Network Admission Control (NAC) Guest Server with software before 2.0.3 allows remote attackers to bypass intended access restrictions and obtain network connectivity via unspecified vectors, aka Bug ID CSCtj66922.
Why it matters now
EPSS 0.01802 78th 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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:nac_guest_server:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:*:*:*:*:*:*:*:* | up to 2.0.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:1.1.0:*:*:*:*:*:*:* | 1.1.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:1.1.1:*:*:*:*:*:*:* | 1.1.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:1.1.2:*:*:*:*:*:*:* | 1.1.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:1.1.3:*:*:*:*:*:*:* | 1.1.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nac_guest_server_software:2.0.1:*:*:*:*:*:*:* | 2.0.1 | Vulnerable | Cisco |
- cpe:2.3:h:cisco:nac_guest_server:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:*:*:*:*:*:*:*:* Versions up to 2.0.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:1.1.2:*:*:*:*:*:*:* Versions 1.1.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:1.1.3:*:*:*:*:*:*:* Versions 1.1.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:nac_guest_server_software:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2011-0963
- 2026-10-03 Alias added: GHSA-xrf6-9p6w-m2j5
References
Sources
- CVE-2011-0963 · CVE Program
- CVE-2011-0963 · NVD
- FIRST EPSS
- GHSA-xrf6-9p6w-m2j5 · GitHub Advisory Database · CC BY 4.0
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