Vulnerability Report

CVE-2001-1291

Title: 3Com telnet server no login delay allows brute force

Auth Bypass

Proof Of Concept

PoC Available for CVE-2001-1291

CWE Category CWE-307
Published Date Jul 12, 2001
Modified Date Jun 16, 2026
Exploit Status Available
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
8.90%

Vulnerability Summary

CVE-2001-1291: The telnet server for 3Com hardware such as PS40 SuperStack II does not delay or disconnect remote attackers who provide an incorrect username or password, which makes it easier to break into the server via brute force password guessing.

Impacted Vendors

3
3com 1

Reference Links

http://www.securityfocus.com/archive/1/196957 http://www.securityfocus.com/bid/3034 https://exchange.xforce.ibmcloud.com/vulnerabilities/6855 http://www.securityfocus.com/archive/1/196957 http://www.securityfocus.com/bid/3034 https://exchange.xforce.ibmcloud.com/vulnerabilities/6855
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
10.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2001-1291 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/21011
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.