Vulnerability intelligence
CVE-2026-1731
BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability
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 Score
9.9
Critical
EPSS — Exploit Probability
90%
Riskier than 100% of all CVEs · checked 2026-09-08
Exploitation
Confirmed in the wild
Used in ransomware campaigns
Remediation
Patch available
Federal deadline 2026-02-16
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. Deadline for federal agencies: 2026-02-16.
21 articles across 8 outlets · first covered Apr 7, 2026 · latest Apr 21, 2026
Associated threat actors
Coverage timeline
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Bomgar CVE-2026-1731 Exploited in Supply Chain, LockBit Deployedwww.darkreading.com · Apr 21, 2026
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Darktrace calls for unified AI security beyond point fixeswww.darktrace.com · Apr 8, 2026
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Storm-1175 Deploys Medusa Ransomware at 'High Velocity'www.darkreading.com · Apr 7, 2026
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China linked Medusa gang uses zero days to hit UK health, financethehackernews.com · Apr 7, 2026
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CVE-2026-1731 Exposed: VShell and SparkRAT Hit BeyondTrustsecurityaffairs.com · Mar 1, 2026
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Darktrace warns stolen identities now drive 70% of attackswww.darktrace.com · Feb 26, 2026
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CVE-2026-1731 exploited to seize control of BeyondTrust supportsecurityaffairs.com · Feb 23, 2026
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HHS warns hospitals to patch BeyondTrust as ransomware spreadsdatabreaches.net · Feb 23, 2026
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VShell and SparkRAT Observed in Exploitation of BeyondTrust Critical Vulnerability (CVE-2026-1731)unit42.paloaltonetworks.com · Feb 19, 2026
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Weekly Recap: Outlook Add-Ins Hijack, 0-Day Patches, Wormable Botnet & AI Malwarethehackernews.com · Feb 16, 2026
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Security Affairs newsletter Round 563 by Pierluigi Paganini – INTERNATIONAL EDITIONsecurityaffairs.com · Feb 15, 2026
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Exploited in the Wild: Critical BeyondTrust Flaw (CVSS 9.9) Opens Door to Network Takeoversecurityonline.info · Feb 15, 2026
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U.S. CISA adds a flaw in BeyondTrust RS and PRA to its Known Exploited Vulnerabilities catalogsecurityaffairs.com · Feb 14, 2026
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2/13/26, 4:35 PMwww.darktrace.com · Feb 13, 2026
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Attackers exploit BeyondTrust CVE-2026-1731 within hours of PoC releasesecurityaffairs.com · Feb 13, 2026
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BeyondTrust Vulnerability Targeted by Hackers Within 24 Hours of PoC Releasewww.securityweek.com · Feb 13, 2026
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Researchers Observe In-the-Wild Exploitation of BeyondTrust CVSS 9.9 Vulnerabilitythehackernews.com · Feb 13, 2026
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BeyondTrust Patches Critical RCE Vulnerabilitywww.securityweek.com · Feb 10, 2026
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BeyondTrust fixes critical pre-auth bug allowing remote code executionsecurityaffairs.com · Feb 9, 2026
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BeyondTrust Fixes Critical Pre-Auth RCE Vulnerability in Remote Support and PRAthehackernews.com · Feb 9, 2026
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CVE-2026-1731: Critical BeyondTrust Flaw (CVSS 9.9) Allows Pre-Auth RCEsecurityonline.info · Feb 9, 2026