CVE-2001-0080

Cisco Catalyst 4000/5000/6000 6.1 - SSH Protocol Mismatch Denial of Service

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2000-12-13 First Exploit
2001-02-01 CVE Reserved
2001-02-12 CVE Published
2024-08-08 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/2117	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/5760	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/20509	2000-12-13

URL	Date	SRC
http://www.cisco.com/warp/public/707/catalyst-ssh-protocolmismatch-pub.shtml	2017-10-10

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Catalyst 4000 Search vendor "Cisco" for product "Catalyst 4000"				*		-		Affected
Cisco Search vendor "Cisco"		Catalyst 5000 Search vendor "Cisco" for product "Catalyst 5000"				*		-		Affected
Cisco Search vendor "Cisco"		Catalyst 6000 Search vendor "Cisco" for product "Catalyst 6000"				*		-		Affected