SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

SolarWinds Web Help Desk

SolarWinds Web Help Desk contains a deserialization of untrusted data 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. Added to CISA KEV on 2026-02-03 (federal deadline 2026-02-06).

First seen: 3 Feb 2026
Last update: 3 Feb 2026, 12:00 UTC
Identifiers: CVE-2025-40551
Source: CISA KEV
On the menu as: Enterprise apps

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: SolarWinds Web Help Desk
Ids: CVE-2025-40551

SolarWinds Web Help Desk contains a deserialization of untrusted data 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. Added to CISA KEV on 2026-02-03 (federal deadline 2026-02-06).

## Steps
1. This touches infrastructure (erp). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2025-40551") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://nvd.nist.gov/vuln/detail/CVE-2025-40551 https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40551
https://pwned.coffee/i/solarwinds-web-help-desk-deserialization-of-untrusted-da-cve-2025-40551

Sources

Totalone hot coffee