CVE-2026-40140CWE-400

High-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access

High · published July 6, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
50.4
In the wild
Unconfirmed
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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.00648 · 50.4th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-07-06T16:13Z
EPSS history
Timeline
  • 06 JUL 16:13Z
    High-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
    cvelistv5