Critical severity9.8NVD Advisory· Published Jul 6, 2026· Updated Jul 7, 2026
CVE-2026-40139
CVE-2026-40139
Description
A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support. Improper processing of authentication requests may allow an unauthenticated remote attacker to bypass access controls and gain unauthorized access to the appliance, including accounts with elevated privileges. Exploitation requires a specific authentication configuration to be enabled.
Affected products
3- cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*Range: <25.3.3
cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*range: <25.3.3
- (no CPE)
Patches
Vulnerability mechanics
References
1- www.beyondtrust.com/trust-center/security-advisories/bt26-03nvdVendor Advisory
News mentions
0No linked articles in our index yet.