CVE-2026-1731 BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA): command or code injection
In plain words: The program treats text it receives as instructions instead of plain data. The attacker can run commands on the machine — often the whole device is taken over.
Confirmed exploited by CISA on · US federal patch deadline Feb 16, 2026
What to do
- Install BeyondTrust's security update for Remote Support (RS) and Privileged Remote Access (PRA). If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability
- Product
- BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)
- 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.
- Type of flaw
- Command or code injection (CWE-78)
- Confirmed exploited
- Feb 13, 2026 — known to be used in ransomware attacks
- US federal patch deadline
- Feb 16, 2026
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Answering about CVE-2026-1731 ·
Questions about CVE-2026-1731
Is CVE-2026-1731 being exploited?
Yes. CISA added CVE-2026-1731 to its Known Exploited Vulnerabilities catalog on Feb 13, 2026, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2026-1731?
Install BeyondTrust's security update for Remote Support (RS) and Privileged Remote Access (PRA). If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2026-1731?
Only if you use BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA). Aimed mostly at company systems — you are affected through the companies you use, not your own phone.