CRITICAL · CVSS 9.3
ACTIVELY EXPLOITED
CVE-2026-102764: BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
| Vendor | BeyondTrust |
|---|---|
| Product | Remote Support |
| CVSS score | 9.3 · CVSS 4.0 · CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| EPSS | 78.0% (percentile 100) |
| Actively exploited | Yes |
| Added to CISA KEV | 16 Oct 2026 |
| CISA federal deadline | 19 Oct 2026 |
| Weakness (CWE) | CWE-290 |
| NVD published | 15 Oct 2026 |
| NVD last modified | 17 Oct 2026 |
| NVD status | Analyzed |
Affected versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Beyondtrust Remote Support | up to 26.2.3 | – |
Required action (CISA's text)
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Description (NVD)
The vulnerability exists within internal components of BeyondTrust’s Remote Support product. The components did not adequately validate the origin of the messages it received. Under the right conditions, this could allow an attacker to perform file operations on the appliance.
SOURCES
Other BeyondTrust flaws
- CVE-2026-1731: BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability
- CVE-2024-12686: BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) OS Command Injection Vulnerability
- CVE-2024-12356: BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) Command Injection Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 17 Oct 2026.