CVE-2025-26399

CISA KEV RANSOMWARE
ACT NOW Priority: 0.00 BB Relevance: 10/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

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.

CISA Known Exploited Vulnerability

Vendor / Product SolarWinds — Web Help Desk
Date Added 2026-03-09
Remediation Due 2026-03-12
Ransomware Use CONFIRMED
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

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
solarwinds web_help_desk < 12.8.6
solarwinds web_help_desk 12.8.7

Bug Bounty Relevance

10 / 100
✓ Known exploited (KEV)
✓ High exploitation probability

CVSS Score

Unscored

EPSS — Exploitation Probability

90.12%
Raw Score 0.901200
Percentile 99.8%
Date 2026-10-28

Intelligence Sources

kev ref →