CVE-2026-1731

CRITICAL CISA KEV EPSS 99.7%
Published Feb 6, 20264mo ago · Modified Jun 17, 20262w ago
9.9 CVSS 4.0
Critical
Find Similar
Published Feb 6, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago
KEV Listed Feb 13, 2026 4mo ago
KEV Due Feb 16, 2026 135d overdue

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 Details

Base Score
9.9
Exploitability
—
Impact
—
Vector string
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/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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

CISA Known Exploited Overdue 135d
Added
Feb 13, 2026
Due
Feb 16, 2026

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

EPSS Exploit Probability
99.7% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available

Weaknesses 1

CWE-78 OS Command Injection Injection

Affected Products 2

VendorProductVersionRange
beyondtrustprivileged_remote_access* <25.1
beyondtrustremote_support* <25.3.2

References 5

  • beyondtrustcorp.service-now.com https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0023293
    Permissions Required
  • github.com https://github.com/win3zz/CVE-2026-1731
    ExploitThird Party Advisory
  • beyondtrust.com https://www.beyondtrust.com/trust-center/security-advisories/bt26-02
    Vendor Advisory
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-1731
    US Government Resource
  • greynoise.io https://www.greynoise.io/blog/reconnaissance-beyondtrust-rce-cve-2026-1731
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.