CVE-2026-1731
CRITICAL KEV CISA Exploitation: ACTIVE
Ransomware noto
9.9
CVSS 4.0
Description
BeyondTrust Remote Support (RS) and certain older versions of Privileged Remote Access (PRA) contain a critical pre-authentication remote code execution vulnerability. By sending specially crafted requests, an unauthenticated remote attacker may be able to execute operating system commands in the context of the site user.
Metadata
Severity & Metrics
9.9
CRITICAL CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L
SSVC — CISA Coordinator
CISA Known Exploited Vulnerability
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA description
BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)contain an OS command injection vulnerability. Successful exploitation could allow an unauthenticated remote attacker to execute operating system commands in the context of the site user. Successful exploitation requires no authentication or user interaction and may lead to system compromise, including unauthorized access, data exfiltration, and service disruption.
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| BeyondTrust | Remote Support(RS) & Privileged Remote Access(PRA) | — | 0 ≤ RS 25.3.1, 0 ≤ PRA 24.3.4 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-78 | cna | CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 9.9 | CRITICAL | 4.0 | cna | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L |
References (2)