Back to KEVs

CVE-2025-26399

SolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation Vulnerability

Basic Information

CVE State
PUBLISHED
Reserved Date
February 08, 2025
Published Date
September 23, 2025
Last Updated
March 10, 2026
Vendor
SolarWinds
Product
Web Help Desk
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.
Tags
cisa

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2026-06-01 12:09:49 UTC) Source

References

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

Known Exploited Vulnerability Information

Source Added Date
CVE 2026-06-01 12:09:49 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel