Known exploited vulnerability
CVE-2026-1731
The short answer
CVE-2026-1731 affects BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA) and is rated critical (CVSS 9.9). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-02-13: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-78.
Severity
9.9 critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Exploited (CISA KEV)
Yes, since Feb 13, 2026
Federal due date Feb 16, 2026
EPSS, next 30 days
94%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
Remote Support(RS) & Privileged Remote Access(PRA). NVD's record lists the exact affected versions.
References
- beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0023293 Permissions Required
- www.beyondtrust.com/trust-center/security-advisories/bt26-02 Vendor Advisory
- github.com/win3zz/CVE-2026-1731 ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-1731 US Government Resource
- www.greynoise.io/blog/reconnaissance-beyondtrust-rce-cve-2026-1731 Third Party Advisory
Questions
Is CVE-2026-1731 being exploited?
Yes. CISA added CVE-2026-1731 to its Known Exploited Vulnerabilities catalog on 2026-02-13, with a federal remediation due date of 2026-02-16. CISA lists it as used in ransomware campaigns.
How do I fix CVE-2026-1731?
CISA's 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.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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