Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a…
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 · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service.
Why it matters now
EPSS 0.01435 73rd 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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:catos:4.5\(11\):*:*:*:*:*:*:* | 4.5(11) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:catos:4.5.10:*:*:*:*:*:*:* | 4.5.10 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:catos:5.5\(4b\):*:*:*:*:*:*:* | 5.5(4b) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:catos:5.5\(6\):*:*:*:*:*:*:* | 5.5(6) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:catos:6.1\(1c\):*:*:*:*:*:*:* | 6.1(1c) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:catos:6.1\(2\):*:*:*:*:*:*:* | 6.1(2) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:catos:6.1.2:*:*:*:*:*:*:* | 6.1.2 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:catos:4.5\(11\):*:*:*:*:*:*:* Versions 4.5(11) Vulnerable ·Cisco
- cpe:2.3:o:cisco:catos:4.5.10:*:*:*:*:*:*:* Versions 4.5.10 Vulnerable ·Cisco
- cpe:2.3:o:cisco:catos:5.5\(4b\):*:*:*:*:*:*:* Versions 5.5(4b) Vulnerable ·Cisco
- cpe:2.3:o:cisco:catos:5.5\(6\):*:*:*:*:*:*:* Versions 5.5(6) Vulnerable ·Cisco
- cpe:2.3:o:cisco:catos:6.1\(1c\):*:*:*:*:*:*:* Versions 6.1(1c) Vulnerable ·Cisco
- cpe:2.3:o:cisco:catos:6.1\(2\):*:*:*:*:*:*:* Versions 6.1(2) Vulnerable ·Cisco
- cpe:2.3:o:cisco:catos:6.1.2:*:*:*:*:*:*:* Versions 6.1.2 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0429
- 2026-10-03 Alias added: GHSA-2h6x-3gq5-h875
References
Advisory 1
More Cisco Catos vulnerabilities
- TI-2001-00041 Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote… CVSS 2.0HIGH 7.8
- TI-2003-00200 Unknown vulnerability in Cisco Catalyst 7.5(1) allows local users to bypass… CVSS 2.0HIGH 9.3
- TI-2002-01178 Buffer overflow in the embedded HTTP server for Cisco Catalyst switches running CatOS 5.4… CVSS 2.0HIGH 7.1
- TI-2006-04612 The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) and CatOS allows remote… CVSS 2.0HIGH 7.8
- TI-2005-04003 Unspecified Cisco Catalyst Switches allow remote attackers to cause a denial of service… CVSS 2.0HIGH 7.8
- TI-2002-00996 Cisco IOS 12.0 through 12.2, when supporting SSH, allows remote attackers to cause a… CVSS 2.0HIGH 7.1
Sources
- CVE-2001-0429 · CVE Program
- CVE-2001-0429 · NVD
- FIRST EPSS
- GHSA-2h6x-3gq5-h875 · GitHub Advisory Database · CC BY 4.0
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