HIGH CWE-400
CVE-2026-40140
High-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
BeyondTrust·Remote Support
8.7/ 10
CVSS 4.0
High severity
0.65%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 52% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list.
Timeline
- Published
- Jul 6, 2026
- Updated
- Jul 7, 2026
- First covered
- Jul 7, 2026
- Latest story
- 4 months ago
Summary
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.
CWE-400Uncontrolled Resource Consumption
Attack profile
Attack vectorNetwork
ComplexityLow
RequirementsNone
PrivilegesNone
User interactionNone
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NAffected products
- BeyondTrust Remote Supportup to 25.3.2
- BeyondTrust Privileged Remote Accessup to 25.3.2