CVE-2026-40140

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

Published Jul 6, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Beyondtrust
Beyondtrust privileged Remote Access
Beyondtrust remote Support
Vendors & Products Beyondtrust
Beyondtrust privileged Remote Access
Beyondtrust remote Support
Type Values Removed Values Added
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.
Title High-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access
Weaknesses CWE-400
References
Metrics cvssV4_0

{'score': 8.7, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
BT
Published
Updated
Jul 7, 2026, 3:01 PM
Reserved
Apr 9, 2026, 6:36 PM
Status
Analyzed
Published
Jul 6, 2026, 5:16 PM
Modified
Jul 7, 2026, 6:40 PM