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TI-2026-28957 Aliases CVE-2026-40138GHSA-hcrc-2pw3-4v88

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

Priority MEDIUM 42CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00459 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BeyondTrustRemote Supportup to 25.3.2—No fix listedCNA
BeyondTrustPrivileged Remote Accessup to 25.3.2—No fix listedCNA
  • Remote Support VendorBeyondTrust Affected up to 25.3.2 Fixed in — No fix listed CNA
  • Privileged Remote Access VendorBeyondTrust Affected up to 25.3.2 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*before 25.3.3VulnerableBeyondTrust
cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*before 25.3.3VulnerableBeyondTrust
  • cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:* Versions before 25.3.3 Vulnerable ·BeyondTrust
  • cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:* Versions before 25.3.3 Vulnerable ·BeyondTrust

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40138
  2. 2026-10-03 Alias added: GHSA-hcrc-2pw3-4v88

References

Advisory 1

  • TI-2026-01414 Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) KEVCVSS 4.0CRITICAL 9.9
  • TI-2024-11463 Command Injection Vulnerability in Remote Support(RS) & Privileged Remote Access (PRA) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-11765 Command Injection vulnerability in Remote Support(RS) & Privilege Remote Access (PRA) KEVCVSS 3.1HIGH 7.2
  • TI-2023-09461 BeyondTrust Privileged Remote Access (PRA) versions 22.2.x to 22.4.x are vulnerable to a… CVSS 3.1HIGH 7.8
  • TI-2023-03984 Command injection in BeyondTrust Privileged Remote Access CVSS 3.1CRITICAL 9.8
  • TI-2026-28959 High-Severity Pre-Authentication Vulnerability in BeyondTrust Remote Support and Privileged Remote Access CVSS 4.0HIGH 8.7
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences