Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel…
Priority LOW 39CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel interface exists, allows remote attackers to cause a denial of service (interface queue wedge) via tunneled (1) GRE/IP, (2) IPIP, or (3) IPv6 in IPv4 packets, aka Bug ID CSCts66808.
Why it matters now
EPSS 0.02751 86th 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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:10008_router:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:* | 12.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:* | 15.0 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.0\(1\)se:*:*:*:*:*:*:* | 15.0(1)se | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:* | 15.2 | Vulnerable | Cisco |
- cpe:2.3:h:cisco:10008_router:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:* Versions 12.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.0\(1\)se:*:*:*:*:*:*:* Versions 15.0(1)se Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-4620
- 2026-10-03 Alias added: GHSA-cqqf-42xp-fqpj
References
More Cisco 10008 Router vulnerabilities
- TI-2011-02898 Unspecified vulnerability in Cisco IOS 12.2SB before 12.2(33)SB10 and 15.0S before… CVSS 2.0HIGH 7.8
Sources
- CVE-2012-4620 · CVE Program
- CVE-2012-4620 · NVD
- FIRST EPSS
- GHSA-cqqf-42xp-fqpj · GitHub Advisory Database · CC BY 4.0
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