Status: UPDATED | Advisory ID: CVE-2026-40138
| CVE | CVE-2026-40138 |
| CVSS Score / Version | 8.1 (High) / CVSS v3.1 |
| Updated | 2026-09-24 |
| CVSS Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is high; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | BeyondTrust Remote Support |
| Classified as | CWE-287 (Improper Authentication) |
| Exploitation prediction (EPSS) | 0.46% probability of exploitation in the next 30 days (37% percentile) -- FIRST.org's EPSS model. |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| BeyondTrust | Remote Support |
| Subsystems | OT Secure Remote Access/PAM |
| Sectors | Multiple |
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
Monitor BeyondTrust's web page for any future patch releases. See vendor advisory link below.