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Vulnerability record · CVE-2001-1291 · published 12 July 2001

CVE-2001-1291: 3com superstack ii ps hub 40 firmware improper restriction of authentication attempts vulnerability

3com · Superstack Ii Ps Hub 40 Firmware

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.

9.8 CVSS 3.1 Critical EPSS 8.9% · top 4.9% CWE-307 · Improper restriction of authentication attempts
9.8CVSS 3.1 base score, v2 10.0
8.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/archive/1/196957 Broken LinkThird Party AdvisoryVDB EntryVendor Advisory
http://www.securityfocus.com/bid/3034 Broken LinkExploitThird Party AdvisoryVDB EntryVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6855 Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/196957 Broken LinkThird Party AdvisoryVDB EntryVendor Advisory
http://www.securityfocus.com/bid/3034 Broken LinkExploitThird Party AdvisoryVDB EntryVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6855 Third Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2001-1291), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.