CVE-2025-26399

SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

SolarWinds — Web Help Desk

Added to KEV catalog: 9 March 2026
Federal remediation due date: 12 March 2026
Weakness classification (CWE): CWE-502

CISA Description

SolarWinds Web Help Desk contain a deserialization of untrusted data vulnerability in AjaxProxy that could allow an attacker to run commands on the host machine.

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-2025-26399 ; https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_12-8-7-hotfix-1_release_notes.htm ; https://nvd.nist.gov/vuln/detail/CVE-2025-26399

View on NVD View on MITRE CVE View full CISA catalog

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