CVE-2001-0080
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service...
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service by connecting to the SSH service with a non-SSH client, which generates a protocol mismatch error.
Exploit likelihood
What each source reports
NVD Score used
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service by connecting to the SSH service with a non-SSH client, which generates a protocol mismatch error.
- Record
CVE-2001-0080- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service by connecting to the SSH service with a non-SSH client, which generates a protocol mismatch error.
- Record
CVE-2001-0080- Updated
- 2026-11-02
EUVDEUVD-2001-0080 No score
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service by connecting to the SSH service with a non-SSH client, which generates a protocol mismatch error.
- Record
EUVD-2001-0080- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wmwf-3w9p-w4cj No score
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service...
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service by connecting to the SSH service with a non-SSH client, which generates a protocol mismatch error.
- Record
GHSA-wmwf-3w9p-w4cj- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Cisco Catalyst 4000/5000/6000 6.1 - SSH Protocol Mismatch Denial of Service | 2000-12-13 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2001-0080 is a medium vulnerability (CVSS 5.0) in Cisco Catalyst 6000, published February 12, 2001. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.95%, the 95th percentile. No source names a fixed version.