CVE-2001-1291

highpriority · attend · 52EPSS 0.089 · 95 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

8.90% (95th) EPSS

CVSS 10 · high

Is it mine?

2 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-23

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

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.3–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-307USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-210113Com SuperStack II PS Hub 40 - TelnetD Weak Password Protectionfunctional · exploit_db

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
3com superstack ii ps hub 40 firmwareall versionsnvdUScpe:2.3:o:3com:superstack_ii_ps_hub_40_firmware:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2001-07-12modified 2026-06-16

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references (6)

External citations — patches, advisories, analysis.

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

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