CVE-2026-1731 Ransomware

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.

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.

Notes & references

• Please adhere to the vendor's guidelines to assess exposure and mitigate risks. Check for signs of potential compromise on all internet accessible BeyondTrust products affected by this vulnerability. For more information please: see: https://www.beyondtrust.com/trust-center/security-advisories/bt26-02
• https://nvd.nist.gov/vuln/detail/CVE-2026-1731

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

• RA-5 · Vulnerability Monitoring and Scanning
• SI-2 · Flaw Remediation
• CM-6 · Configuration Settings
• SI-7 · Software, Firmware, and Information Integrity
• CM-8 · System Component Inventory

External lookups

• NVD · CVE-2026-1731
• CVE.org · CVE-2026-1731
• CISA KEV catalog (canonical)