Cisco IOS 11.1CC through 12.2 with Cisco Express Forwarding (CEF) enabled includes…
Priority LOW 26Published · 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
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Cisco IOS 11.1CC through 12.2 with Cisco Express Forwarding (CEF) enabled includes portions of previous packets in the padding of a MAC level packet when the MAC packet's length is less than the IP level packet length.
Why it matters now
EPSS 0.01781 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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios:11.1cc:*:*:*:*:*:*:* | 11.1cc | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:* | 12.0s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0st:*:*:*:*:*:*:* | 12.0st | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0t:*:*:*:*:*:*:* | 12.0t | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:* | 12.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.1e:*:*:*:*:*:*:* | 12.1e | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.1t:*:*:*:*:*:*:* | 12.1t | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:* | 12.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.2t:*:*:*:*:*:*:* | 12.2t | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios:11.1cc:*:*:*:*:*:*:* Versions 11.1cc Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:* Versions 12.0s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0st:*:*:*:*:*:*:* Versions 12.0st Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0t:*:*:*:*:*:*:* Versions 12.0t Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:* Versions 12.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.1e:*:*:*:*:*:*:* Versions 12.1e Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.1t:*:*:*:*:*:*:* Versions 12.1t Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:* Versions 12.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.2t:*:*:*:*:*:*:* Versions 12.2t Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2002-0339
- 2026-10-03 Alias added: GHSA-9837-m8h3-j3ch
References
More Cisco Ios vulnerabilities
- TI-2018-00138 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
- TI-2017-09019 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
- TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
- TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
- TI-2017-04499 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
- TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2002-0339 · CVE Program
- CVE-2002-0339 · NVD
- FIRST EPSS
- GHSA-9837-m8h3-j3ch · 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