CVE-2025-26399: SolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
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.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · CWE-502
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
SolarWinds: Web Help Desk
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_12-8-7-hotfix-1_relea… (opens in new tab)
- www.solarwinds.com/trust-center/security-advisories/CVE-2025-26399 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)