CVE-2025-40553

Critical

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.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Solarwinds Web Help Desk

PublishedJan 28, 2026

First seenJan 28, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

solarwinds web_help_desk2026.1 or later

Vendor advisories

documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm

Affected products

Product	Affected versions	Fixed in
solarwinds web_help_desk	v < 2026.1	2026.1

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