CVE-2025-40551 · netVigilance record NV26-0020
SolarWinds Web Help Desk Deserialization of Untrusted Data
past due
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-02-06 · passed 7 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
SolarWinds Web Help Desk. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-502.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 7 months ago
Sources
- NVD entry for CVE-2025-40551 nvd.nist.gov/vuln/detail/CVE-2025-40551
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- solarwinds.com www.solarwinds.com/trust-center/security-advisories/cve-2025-40551
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-40551