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Fencer Intel
critical 9.8

CVE-2025-40554 in the critical feed json

SolarWinds Web Help Desk Authentication Bypass Vulnerability

published 9mo ago modified 4mo ago also EUVD-2025-206480

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
60.6%
EPSS 60.6% chance of exploitation in 30 days, percentile 99.1%
public exploits
0
none known, plus a Nuclei check

Summary

SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited, could allow an attacker to invoke specific actions within Web Help Desk.

Patch / fix

  • solarwinds web_help_desk 2026.1

Is CVE-2025-40554 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Ransomware

Groups reported to have exploited it in intrusions.

  • Qilin ransomware gang

reported by ctrlaltintel.com

Ransomware Vulnerability Matrix by BushidoUK (github.com/BushidoUK/Ransomware-Vulnerability-Matrix), reformatted per CVE. CC BY 4.0

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
9mo ago

Exploit prediction

60.64% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Nuclei template SolarWinds Web Help Desk - Authentication Bypass nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • SolarWinds Web Help Desk

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.