CVE-2025-40552

SolarWinds Web Help Desk Authentication Bypass Vulnerability

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.

Affected

SolarWinds · Web Help Desk

CVSS v3.1 SOLARWINDS

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

EPSS

52.00% chance of exploitation in the next 30 days, 99th percentile

Nuclei

critical · CWE-1390

Published

2026-01-28

Updated

2026-02-27

Proof-of-concept exploits (1)

• watchtowrlabs/watchTowr-vs-SolarWinds-WebHelpDesk-CVE-2025-40552-CVE-2025-405534★ · 2026-02-13

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-40552.yaml

Security advisories

• https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40552
• https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026…

References

• CVE Record
• NVD entry