Web Help Desk

CVE-2025-40553: SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability

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.

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 9.8
EPSS68%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
Web Help Desk 12.8See the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

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.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.

Get alerts

A notification when we publish a new analysis or a covered vendor gets a new actively exploited CVE. No account, no email.