Remote Code Execution Vulnerability in SolarWinds Web Help Desk
CVE-2025-26399

9.8CRITICAL

Key Information:

Vendor

Solarwinds
Status
Web Help Desk
Vendor
CVE Published:
23 September 2025

What is CVE-2025-26399?

The SolarWinds Web Help Desk has a vulnerability that enables unauthenticated users to exploit an AjaxProxy deserialization flaw, thereby executing arbitrary commands on the host machine. This issue represents a patch bypass for previously identified vulnerabilities, including CVE-2024-28988 and CVE-2024-28986, indicating a critical security gap within the product.

Affected Version(s)

Web Help Desk 12.8.7 and below

References

https://www.solarwinds.com/trust-center/security-advisori...
https://documentation.solarwinds.com/en/success_center/wh...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Anonymous working with Trend Micro Zero Day Initiative
JSON
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CVE-2025-26399 : Remote Code Execution Vulnerability in SolarWinds Web Help Desk