CVE-2026-1731: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA)
CVE-2026-1731 is a critical remote code execution vulnerability in BeyondTrust Remote Support (RS) and certain older versions of Privileged Remote Access (PRA). It arises from improper neutralization of special elements in OS commands (CWE-78), allowing unauthenticated attackers to execute arbitrary OS commands remotely without user interaction. The vulnerability affects on-premises deployments only and has a CVSS 4. 0 base score of 9. 9, indicating critical severity. No vendor advisory or patch information is currently available, and no known exploits have been reported in the wild. Organizations using these products should urgently verify patch availability and apply mitigations once confirmed.
AI Analysis
Technical Summary
CVE-2026-1731 is an OS command injection vulnerability (CWE-78) in BeyondTrust Remote Support and certain older versions of Privileged Remote Access. It allows unauthenticated remote attackers to execute arbitrary operating system commands due to improper neutralization of special elements in OS commands. This vulnerability requires no authentication or user interaction and affects only on-premises deployments. The CVSS 4.0 base score is 9.9, reflecting critical impact. No vendor advisory or patch information is currently provided, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation of this vulnerability enables unauthenticated remote code execution on affected systems, potentially allowing full system compromise. The critical CVSS score of 9.9 reflects the high impact and ease of exploitation. Since the vulnerability affects on-premises deployments, organizations running these versions of BeyondTrust Remote Support or older Privileged Remote Access are at risk. No known exploits have been observed in the wild to date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, organizations should verify their deployment versions and monitor BeyondTrust communications for updates. Since this vulnerability affects on-premises deployments only, cloud service users are not impacted. No vendor advisory or mitigation instructions are currently provided.
CVE-2026-1731: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA)
Description
CVE-2026-1731 is a critical remote code execution vulnerability in BeyondTrust Remote Support (RS) and certain older versions of Privileged Remote Access (PRA). It arises from improper neutralization of special elements in OS commands (CWE-78), allowing unauthenticated attackers to execute arbitrary OS commands remotely without user interaction. The vulnerability affects on-premises deployments only and has a CVSS 4. 0 base score of 9. 9, indicating critical severity. No vendor advisory or patch information is currently available, and no known exploits have been reported in the wild. Organizations using these products should urgently verify patch availability and apply mitigations once confirmed.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-1731 is an OS command injection vulnerability (CWE-78) in BeyondTrust Remote Support and certain older versions of Privileged Remote Access. It allows unauthenticated remote attackers to execute arbitrary operating system commands due to improper neutralization of special elements in OS commands. This vulnerability requires no authentication or user interaction and affects only on-premises deployments. The CVSS 4.0 base score is 9.9, reflecting critical impact. No vendor advisory or patch information is currently provided, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation of this vulnerability enables unauthenticated remote code execution on affected systems, potentially allowing full system compromise. The critical CVSS score of 9.9 reflects the high impact and ease of exploitation. Since the vulnerability affects on-premises deployments, organizations running these versions of BeyondTrust Remote Support or older Privileged Remote Access are at risk. No known exploits have been observed in the wild to date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, organizations should verify their deployment versions and monitor BeyondTrust communications for updates. Since this vulnerability affects on-premises deployments only, cloud service users are not impacted. No vendor advisory or mitigation instructions are currently provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- BT
- Date Reserved
- 2026-01-31T23:54:56.922Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69866468f9fa50a62f36cd17
Added to database: 2/6/2026, 10:00:08 PM
Last enriched: 4/23/2026, 10:21:02 PM
Last updated: 5/8/2026, 9:28:55 AM
Views: 355
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