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Critical · 9.8 Known exploited Scanner template Public exploit CVE-2025-40551 EUVD-2025-206426GHSA-7qrj-j83p-3vqg

SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability

Published Jan 28, 2026 · Updated Oct 7, 2026 · Assigned by SolarWinds

Vendor: SolarWinds Product: Web Help Desk

Description

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.

Affected products

VendorProductAffectedFixed
SolarWinds Web Help Desk 12.8.8 HF1 and below —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Advisories 2

References