What is CVE-2026-1731?

CVE-2026-1731 is a critical-severity vulnerability in Beyondtrust Privileged Remote Access, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-02-06.

How severe is CVE-2026-1731?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2026-1731 known to be exploited?

Yes. CVE-2026-1731 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-02-13), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.

RCE in Beyondtrust Privileged Remote Access

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-02-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.925 (99.8th percentile), scored 2026-10-19.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.895 · newest: 0.925 · change: +0.030

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2026-02-13. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2026-02-16.

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.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

13061848-ea10-403d-bd75-c83a022c2891 (Permissions Required)
13061848-ea10-403d-bd75-c83a022c2891 (Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory)

Frequently asked questions

What is CVE-2026-1731?: CVE-2026-1731 is a critical-severity vulnerability in Beyondtrust Privileged Remote Access, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-02-06.
How severe is CVE-2026-1731?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2026-1731 known to be exploited?: Yes. CVE-2026-1731 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-02-13), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.