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Fencer Vulns
critical 9.8

CVE-2025-40552 in the critical feed json

SolarWinds Web Help Desk Authentication Bypass Vulnerability

published 2026-01-28 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-206429

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
52.0%
EPSS 52.0% chance of exploitation in 30 days, percentile 98%
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, would allow a malicious actor to execute actions and methods that should be protected by authentication.

Patch / fix

  • solarwinds web_help_desk 2026.1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
9 mo ago

Exploit prediction

52.00% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template SolarWinds Web Help Desk - Authentication Bypass nuclei detection template
  • github.com https://github.com/watchtowrlabs/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553/blob/main/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-40553.py referenced PoC, tagged "exploit" by a source, unverified

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 Vulns 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.