CVE-2026-1731

Description

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.

Overview

State: PUBLISHED
Assigner (CNA): BT
CVSS severity: CRITICAL
CVSS score: 9.9 / 10
CVSS vector: 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
Effective score: 9.9 / 10 CRITICAL source: CNA overview
CWE(s): CWE-78
Reserved: 2026-01-31
Published: 2026-02-06 21:49 UTC
Last updated: 2026-02-26 15:04 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/1xxx/CVE-2026-1731.json
Linked Threat: CVE-2026-1731 — BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA): BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability

CISA Known Exploited Vulnerabilities CISA KEV

CISA has confirmed in-the-wild exploitation of this CVE. Federal agencies must remediate by the due date below; private orgs should treat it as priority-1.

Vulnerability name: BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability
Vendor / project: BeyondTrust
Product: Remote Support (RS) and Privileged Remote Access (PRA)
Date added to KEV: 2026-02-13
Remediation due: 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.
Ransomware campaign use: Known
CISA notes: Please adhere to the vendor's guidelines to assess exposure and mitigate risks. Check for signs of potential compromise on all internet accessible BeyondTrust products affected by this vulnerability. For more information please: see: https://www.beyondtrust.com/trust-center/security-advisories/bt26-02 ; https://nvd.nist.gov/vuln/detail/CVE-2026-1731
CISA listing: www.cisa.gov/known-exploited-vulnerabilities-catalog

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-02-06 22:16:11 UTC
NVD last modified: 2026-02-17 13:40:10 UTC
NVD CVSS v3.1: 9.8 / 10 CRITICAL source: nvd@nist.gov
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.8006 (probability of exploitation in next 30 days)
EPSS percentile: 99.13% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-5559
Assigner: BT
Published: Feb 6, 2026, 9:49:20 PM
Updated: Feb 26, 2026, 3:04:15 PM
EUVD base score (CVSS 4.0): 9.9 / 10
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
EUVD-reported EPSS: 80.0700
Vendors: BeyondTrust
Products: Remote Support(RS) & Privileged Remote Access(PRA) (0 ≤RS 25.3.1)

Remote Support(RS) & Privileged Remote Access(PRA) (0 ≤PRA 24.3.4)
Aliases: GHSA-p5wr-5p37-2wm6

ENISA description: 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.

EUVD references (2)

Affected products (1)

Vendor	Product	Versions	Platforms
BeyondTrust	Remote Support(RS) & Privileged Remote Access(PRA)	`0` (affected), `0` (affected)	—

Affected products — CPE 2.3 (2) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*
cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*

Remediations (9)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-1731: Critical Unauthenticated Remote Code Execution ... - Rapid7

web:www.rapid7.com

On February 13, 2026 , CVE-2026-1731 , was added to the U.S. Cybersecurity and Infrastructure Security Agency's (CISA) list of known exploited vulnerabilities (KEV), based on evidence of active exploitation. Mitigation guidance A vendor-provided patch is available to remediate CVE-2026-1731 in on-premise deployments. BeyondTrust Remote Support ...

2026-05-14 16:20 UTC
Nvd - Cve-2026-1731

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-14 16:20 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-14 16:20 UTC
CVE-2026-1731 fuels ongoing attacks on BeyondTrust remote access products

web:securityaffairs.com

BeyondTrust released patches for CVE-2026-1731 on February 6 after Hacktron researchers warned that about thousands of instances were exposed online. Hacktron AI team reported that roughly 11,000 BeyondTrust Remote Support instances are exposed online across cloud and on-prem environments.

2026-05-14 16:20 UTC
Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws

web:www.bleepingcomputer.com

Today is Microsoft's March 2026 Patch Tuesday with security updates for 79 flaws, including 2 publicly disclosed zero-day vulnerabilities.

2026-05-14 16:20 UTC
Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...

web:cybersecuritynews.com

Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

2026-05-14 16:20 UTC
CVE Record: CVE-2026-1731

web:www.cve.org

Vulnerability detail for CVE-2026-1731 Notice: Expanded keyword searching of CVE Records (with limitations) is now available in the search box above. Learn more here.

2026-05-14 16:20 UTC
May 2026 Patch Tuesday: no zero-days but plenty to fix

web:www.malwarebytes.com

May's Patch Tuesday may not be the giant release many expected, but there are still plenty of important fixes that shouldn't be ignored.

2026-05-14 16:20 UTC
CISA Required Action

CISA KEV

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due date: 2026-02-16 Known ransomware campaign use: Known

2026-05-14 01:13 UTC

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

http://cwe.mitre.org/data/definitions/78.html rapid7:cwe.mitre.org
https://attackerkb.com/topics/CVE-2026-1731 rapid7:attackerkb.com
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-5559 rapid7:euvd.enisa.europa.eu
https://www.beyondtrust.com/trust-center/security-advisories/bt26-02 rapid7:www.beyondtrust.com
https://www.cve.org/CVERecord?id=CVE-2026-1731 rapid7:www.cve.org

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0023293 13061848-ea10-403d-bd75-c83a022c2891 Permissions Required
https://github.com/win3zz/CVE-2026-1731 134c704f-9b21-4f2e-91b3-4a467353bcc0 ExploitThird Party Advisory
https://www.beyondtrust.com/trust-center/security-advisories/bt26-02 13061848-ea10-403d-bd75-c83a022c2891 Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-1731 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government Resource
https://www.greynoise.io/blog/reconnaissance-beyondtrust-rce-cve-2026-1731 134c704f-9b21-4f2e-91b3-4a467353bcc0 Third Party Advisory

Indicators (2)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
cwe	`CWE-78`	no local data	2026-05-14 02:58 UTC
cve	`CVE-2026-1731`	no local data	2026-05-14 02:58 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-1731.json.

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