Vulnerability · Published Jul 6, 2026 · Assigned by BT
CVE-2026-40140High-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
High 8.7
In plain English
A high-severity uncontrolled resource consumption 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 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.6%top 48.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| BeyondTrust | Remote Support | 0 – through 25.3.2 |
| BeyondTrust | Privileged Remote Access | 0 – through 25.3.2 |
Weakness: CWE-400 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N