CVE-2025-26399

Description

SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote code execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine. This vulnerability is a patch bypass of CVE-2024-28988, which in turn is a patch bypass of CVE-2024-28986.

Affected Platforms

Weakness Type

CWE-502, CWE-502

References

• https://documentation.solarwinds.com/en/success_center/whd/content/release_notes…
• https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-26399
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-…
• https://www.microsoft.com/en-us/security/blog/2026/02/06/active-exploitation-sol…