Vulnerability · Published Jan 28, 2026 · Assigned by SolarWinds
CVE-2025-40552SolarWinds Web Help Desk Authentication Bypass Vulnerability
Critical 9.8
In plain English
A critical-severity security flaw in Web Help Desk from SolarWinds. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 52.0% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)52.0%top 1.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling2Nuclei, Public PoC
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SolarWinds | Web Help Desk | 12.8.8 HF1 and below |
Weakness: CWE-1390 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40552 vendor-advisory, patch
- https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm
- 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 exploit