CVE-2026-1731

Analyzed
Published: 06 Feb 2026, 21:49
Last modified:26 Feb 2026, 15:04

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.9 CRITICAL
v4.0 (cve.org)
EPSS Score
75.55% CRITICAL
76% probability 0.00%
KEV
Listed
CISA
1 listing
Ransomware
Known Use
Public exploits
2 found
Dark Web
Not detected

Timeline

06 Feb 2026, 21:49
Published
Vulnerability first disclosed
13 Feb 2026, 00:00
Added to CISA KEV
BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability
16 Feb 2026, 00:00
CISA Remediation Due
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
26 Feb 2026, 15:04
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v4.0•CRITICAL•Score: 9.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L
  • v4.0•CRITICAL•Score: 9.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L/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
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 75.55%• Percentile: 99%

Techniques & Countermeasures

  • CWE-78•Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

    The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Affected Systems

  • beyondtrust•privileged remote access

    < 25.1

  • beyondtrust•remote support

    < 25.3.2

  • beyondtrust•remote support(rs) & privileged remote access(pra)

    ≤ RS 25.3.1 | ≤ PRA 24.3.4

References (5)