BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability
BeyondTrust — Remote Support(RS) & Privileged Remote Access(PRA)
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.
9.8
89.4%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- Feb 6, 2026
- Modified
- Jun 17, 2026
- Added to KEV
- Feb 13, 2026
- Federal patch due
- Feb 16, 2026
CISA 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.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
5 foundWeaponization
Public repositories whose name or description references CVE-2026-1731, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
- win3zz/CVE-2026-1731★ 36
CVE-2026-1731 - Critical command injection vulnerability in BeyondTrust Remote Support and Privileged Remote Access due to unsafe Bash arithmetic evaluation in a WebSocket-reachable script
updated Aug 24, 2026
- jakubie07/CVE-2026-1731★ 6
CVE-2026-1731 PoC
updated Jun 25, 2026
- cybrdude/cve-2026-1731-scanner★ 4
Passive vulnerability scanner for CVE-2026-1731 — BeyondTrust RS/PRA pre-auth RCE (CVSS 9.9). Educational & defensive use only.
updated Aug 24, 2026
- hexissam/CVE-2026-1731★ 0
CVE-2026-1731 — BeyondTrust Remote Code Execution Vulnerability
updated Feb 22, 2026
- ridhinva/beyondtrust-rce-scanner★ 0
Scanner: CVE-2026-1731 BeyondTrust Remote Support Pre-auth RCE — Python checker for actively exploited vulnerability (CISA KEV)
updated Aug 7, 2026
References
How this class of flaw gets exploited
Frequently asked questions
What is CVE-2026-1731?
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.
How severe is CVE-2026-1731?
CVE-2026-1731 has a CVSS base score of 9.8 out of 10 (CVSS 3.1).
Is CVE-2026-1731 actively exploited in the wild?
Yes. CVE-2026-1731 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Feb 13, 2026, meaning CISA has confirmed evidence of active exploitation. It is also flagged as used in ransomware campaigns.
What is the EPSS score for CVE-2026-1731?
89.4% - meaning FIRST.org's EPSS model estimates a 89.4% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2026-1731?
We found 5 public GitHub repositories referencing CVE-2026-1731, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.
What type of vulnerability is CVE-2026-1731?
CVE-2026-1731 is classified under CWE-78 (CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')).
Cross-checked against
Impactr finds and proves whether CVE-2026-1731 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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