CVE-2001-1291

Superstack Ii Ps Hub 40 Firmware vulnerability

CVSS

9.8

EPSS

8.9%

EPSS pct

95th

Exploited

No known

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.

Affected vendor

3com

Affected product

Superstack Ii Ps Hub 40 Firmware

CVSS vector

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

Weakness type (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

Published

2001-07-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2001-1291

Confirm whether 3com Superstack Ii Ps Hub 40 Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2001-1291.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2001-1291

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2001-1291 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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