Remote Support and Privileged Remote Access
CVE-2026-40140: High-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
BeyondTrust Remote Support and Privileged Remote Access contain a high-severity pre-authentication vulnerability in the network communication subsystem.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Remote Support 0 to 25.3.2 | Upgrade past 25.3.2; see the advisory |
| Privileged Remote Access 0 to 25.3.2 | Upgrade past 25.3.2; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
BeyondTrust Remote Support and Privileged Remote Access contain a high-severity pre-authentication vulnerability in the network communication subsystem. Insufficient validation of client-supplied input may allow an unauthenticated remote attacker to trigger a denial-of-service condition affecting appliance availability.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.