CVEvulnerability

CVE-2025-40551

9.8 CRITICAL Known exploited Published 2026-01-28 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

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 KEV
2026-02-03
Remediation due
2026-02-06
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40551 ; https://nvd.nist.gov/vuln/detail/CVE-2025-40551
Status
Analyzed
Published
2026-01-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-502

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 configurations

• solarwinds web help desk (< 2026.1)

Related

Weakness · CWE (1)

  • CWE-502 Deserialization of Untrusted Data weakness

References