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.
Is CVE-2025-26399 exploited?
Listed in the CISA KEV catalog on 2026-03-09.
Federal remediation due 2026-03-12.
Past that date by 202 days.
EPSS puts exploitation in the next 30 days at 90%.
Public exploit code: none found in monitored sources.
Public detection rules exist.
Which products and versions are affected?
No affected package list recorded here yet.
Is there a patch?
No patch identifier recorded here yet.
What PlainSec published about CVE-2025-26399
PlainSec has not published a story about this CVE.