Cisco IOS 12.2 and earlier running Cisco Discovery Protocol (CDP) allows remote attackers…
Priority LOW 27Published · 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 IOS 12.2 and earlier running Cisco Discovery Protocol (CDP) allows remote attackers to cause a denial of service (memory consumption) via a flood of CDP neighbor announcements.
Why it matters now
EPSS 0.0231 83rd 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:ios:11.1:*:*:*:*:*:*:* | 11.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:11.2:*:*:*:*:*:*:* | 11.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:11.3\(11\)b:*:*:*:*:*:*:* | 11.3(11)b | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0\(5.1\)xp:*:*:*:*:*:*:* | 12.0(5.1)xp | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.0\(19\):*:*:*:*:*:*:* | 12.0(19) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:* | 12.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:catos:4.5\(1\):*:*:*:*:*:*:* | 4.5(1) | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios:11.1:*:*:*:*:*:*:* Versions 11.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:11.2:*:*:*:*:*:*:* Versions 11.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:11.3\(11\)b:*:*:*:*:*:*:* Versions 11.3(11)b Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0\(5.1\)xp:*:*:*:*:*:*:* Versions 12.0(5.1)xp Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.0\(19\):*:*:*:*:*:*:* Versions 12.0(19) Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:* Versions 12.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:catos:4.5\(1\):*:*:*:*:*:*:* Versions 4.5(1) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-1071
- 2026-10-03 Alias added: GHSA-x25r-pmgp-r2rg
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-2001-1071 · CVE Program
- CVE-2001-1071 · NVD
- FIRST EPSS
- GHSA-x25r-pmgp-r2rg · 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