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Vulnerability · Published Jul 6, 2026 · Assigned by BT

CVE-2026-40138Critical Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access

Critical 9.2

In plain English

A critical-severity improper authentication in Privileged Remote Access from BeyondTrust. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 4.0)9.2Critical
Exploit odds (30 days)0.5%top 60.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access. Improper validation of authentication data may allow a network-positioned 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 (as reported)

VendorProductVersions
BeyondTrust Remote Support 0 – through 25.3.2
BeyondTrust Privileged Remote Access 0 – through 25.3.2

Weakness: CWE-287 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References