What it is
CVE-2026-1731 is an unauthenticated vulnerability affecting BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA). BeyondTrust Remote Support (RS) and certain older versions of Privileged Remote Access (PRA)...
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2026-1731
Remote Support(RS) & Privileged Remote Access(PRA) Remote Code Execution
BeyondTrust / Remote Support(RS) & Privileged Remote Access(PRA) · 0 to <= RS 25.3.1
- Severity
- CVSS 9.9 · Critical
- Confidence
- Confirmed
- Exploit status
- Exploited in the wild
- EPSS
- 88.1%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.
Who is affected?
BeyondTrust / Remote Support(RS) & Privileged Remote Access(PRA) 0 to <= rs 25.3.1.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Remote Support(RS) & Privileged Remote Access(PRA) Remote Code Execution
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.
Vendor
Product
Affected
Status
BeyondTrust
Remote Support(RS) & Privileged Remote Access(PRA)
Through RS 25.3.1
Affected
BeyondTrust
Remote Support(RS) & Privileged Remote Access(PRA)
Through PRA 24.3.4
Affected
- Published
- 06 Feb 2026
- Exploitation Reported
- 01 Jun 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
Tags
nuclei_scanner
cisa
malware
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2026-1731
- beyondtrustcorp.service-now.com/csm beyondtrustcorp.service-now.com · CVE Record https://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm...
- beyondtrust.com/trust-center/security-advisories/bt26-02 beyondtrust.com · CVE Record https://www.beyondtrust.com/trust-center/security-advisories/bt26-02
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CVE
Independent exploitation attestation added to the KEV Intelligence record.
Used in malware
CVE
Malware families have been linked to exploitation of this CVE.
Proof of concept available
GitHub
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 10:51 UTC |
| CISA | 2026-06-02 14:03 UTC |
| The Shadowserver | 2026-06-04 13:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
Nuclei template detected 01 Jun 2026.
View Nuclei template (opens in new tab)Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-1731.yaml | 01 Jun 2026 |
Risk and context
Severity, weaknesses, and research context
CVSS v4.0
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
EPSS
88.1%
All CVSS Scores
CVSS v4.0
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
CVSS v3.1
9.8
Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
BeyondTrust Remote Support - Unauthenticated WebSocket RCE
nuclei · Created Unknown
Timeline
From disclosure to observed exploitation
-
Public PoC available
Public proof-of-concept code published
-
KEV confirmed by The Shadowserver
Exploitation attested by an external source
-
First public exploitation report
Exploit observed in malware
-
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
Nuclei template available
Scanner coverage available
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2026-1731
Free JSON includes basic KEV fields{
"cve_id": "CVE-2026-1731",
"confidence": "Confirmed",
"cvss_score": 9.9,
"cvss_estimated": false,
"epss_score": 0.88115,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.