CVE-2025-40536 SolarWinds Web Help Desk Security Control Bypass

Exploited in the wild High 8.1 Published 28 Jan 2026 Updated 26 Feb 2026

Unauthenticated attackers can bypass security controls to access restricted functionality in SolarWinds Web Help Desk.

Exploited in the wild: Since 12 Feb 2026
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-40536?

CVE-2025-40536 is a high-severity vulnerability in SolarWinds Web Help Desk, published on 28 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SolarWinds Web Help Desk was found to be susceptible to a security control bypass vulnerability that if exploited, could allow an unauthenticated attacker to gain access to certain restricted functionality.

Weakness: CWE-693

Which versions are affected by CVE-2025-40536?

It affects 1 product.

Products include Solarwinds Web Help Desk.

How do I fix CVE-2025-40536?

No fix has been published for CVE-2025-40536 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 15 Feb 2026.

Is CVE-2025-40536 being exploited?

Yes. Attackers have exploited CVE-2025-40536 in the wild since at least 12 Feb 2026.

Public exploit code: 1 Metasploit module, 1 Nuclei template and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-m83h-48rr-jcrh.