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CVE-2025-26399 — SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

provenance: imported · CVE: CVE-2025-26399

CVE-2025-26399: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability

CISA Known Exploited Vulnerability (KEV)

Vendor / project SolarWinds
Product Web Help Desk
Date added 2026-03-09
Due date 2026-03-12
Ransomware campaign use Known

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 (CISA)

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

References

  • NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-26399
  • KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog