CVE-2026-1731: in the CISA KEV catalogue

BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability. CISA added CVE-2026-1731 to the Known Exploited Vulnerabilities catalogue on 2026-02-13 with a default due date of 2026-02-16. Known ransomware campaign use: Known. Forensic triage flag: No.

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. (CISA description)

Vendor / product: BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)
CWE: CWE-78
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.
EPSS: 94%, percentile 99 (scored 2026-11-04)

EPSS puts about 94 in 100 odds (94%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 99% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.

Vendor and reference links (from CISA)

Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.

Data dates. CISA KEV catalogue version 2026.11.04, released 2026-11-04, 1,768 entries (checked 2026-11-05). EPSS model v2026.06.15, scored 2026-11-04, 400,189 CVEs. Sources: CISA and FIRST (EPSS by FIRST; scores generated by Empirical Security). Copied to our own database and refreshed automatically; if a refresh fails, the previous copy keeps serving with its own date.

Frequently asked questions

Is CVE-2026-1731 in the CISA KEV catalogue?

Yes. CISA added CVE-2026-1731 (BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2026-02-13. CISA's default due date for it is 2026-02-16.

Is CVE-2026-1731 used in ransomware attacks?

CISA marks known ransomware campaign use as Known for CVE-2026-1731.

What should I do about 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.

Sources

CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
NVD record for CVE-2026-1731