CVE-2026-1731 kev+ ransomware in the critical feed json
Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)
published 2026-02-06 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-5559
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Exploited
- added 2026-02-13, used in ransomware
- epss
- 93.9%
- EPSS 93.9% chance of exploitation in 30 days, percentile 99.8%
- public exploits
- 1
- Metasploit, plus a Nuclei check
Summary
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.
Patch / fix
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.
- beyondtrust privileged_remote_access 25.1
- beyondtrust remote_support 25.3.2
Timeline
- First public exploit (Metasploit exploit/linux/http/beyondtrust_pra_rs_command_injection)
- Published
- Added to CISA KEV
- CISA SSVC: exploitation active
- CISA patch deadline
Known exploited
- Added
- 8 mo ago
- Patch by
- 2026-02-16 (8 mo ago)
- Ransomware
- Known to be used in ransomware campaigns
- 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.
- Vendor, product
- BeyondTrust, Remote Support (RS) and Privileged Remote Access (PRA)
- CISA name
- BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- yes
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
93.85% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/http/beyondtrust_pra_rs_command_injection BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) unauthenticated Remote Code Execution metasploit exploit, excellent rank, 2026-02-06
- Nuclei template BeyondTrust Remote Support - Unauthenticated WebSocket RCE nuclei detection template
- github.com https://github.com/win3zz/CVE-2026-1731 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.9 | 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 |
| CNA | 4.0 | 9.9 | 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 |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA)
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/win3zz/CVE-2026-1731
exploit, third-party-advisory
-
beyondtrust.com
/trust-center/security-advisories/bt26-02
vendor-advisory
-
beyondtrustcorp.service-now.com
/csm?id=csm_kb_article&sysparm_article=KB0023293
permissions-required
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-1731
government-resource, us-government-resource
-
greynoise.io
/blog/reconnaissance-beyondtrust-rce-cve-2026-1731
third-party-advisory
Sources
- CVE List CVE-2026-1731
- NVD CVE-2026-1731
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