What is CVE-2026-1731?

CVE-2026-1731 is Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA). The supplied enrichment data classifies it as Remote Code Exec mapped to CWE-78 OS Command Injection.

Which versions are affected?

Affected product and version evidence is listed in the product table above. Current public advisories should be checked for exact version scope before patch targeting is finalized.

Is there active exploitation?

Yes: CISA KEV signal present. If exploitation is not confirmed from current sources, teams should document that status and continue monitoring KEV, vendor, and telemetry updates.

Is there a public exploit?

72 public PoC repositories reported; 1 marked weaponized in current dataset. Public exploit or PoC availability should raise triage priority, especially for exposed or business-critical systems.

How can defenders detect it?

Start with web/proxy/WAF logs, application logs, network IDS/IPS, EDR process telemetry, host service logs where available. Look for vulnerability-class behavior, product errors, suspicious authentication events, exploit probes, and abnormal process activity based only on evidence that applies to the affected product.

How should teams prioritize it?

Prioritize CVE-2026-1731 using CVSS 9.8, EPSS 90%, KEV status, public PoC status, and asset exposure. Internet-facing, privileged, or business-critical deployments should be handled first.

Are workarounds available?

The supplied mitigation guidance says to apply vendor patches and restrict external exposure until fixed. Fixed-version evidence is listed in the mitigation section above.

Which threat actors are linked publicly?

Publicly linked actor or ransomware signals in the supplied enrichment data: UNC215 (), BRONZE SPRING (), TA428 (), Iron Group (), APT-C-27 (), Ransomware use: Known. Do not attribute exploitation to a threat actor unless the source evidence explicitly supports that linkage.

What should be done in the next 24 hours?

Identify exposed assets running affected vendor/product/version combinations. Treat as emergency remediation because CISA KEV status is present. Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class. Open remediation tickets with affected assets, owners, evidence status, and detection coverage so decisions are traceable.

CISA KEVRansomwarecriticalRemote Code Execpublic exploit

CVE-2026-1731

CVE-2026-1731 — Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)

Q: Is it in CISA KEV?

Yes. The supplied enrichment data lists CVE-2026-1731 in CISA KEV with 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.. KEV status should be monitored because it can change after initial disclosure or after exploitation becomes publicly confirmed.

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.

Published Feb 6, 2026Updated Jun 17, 2026Sources: NVD, BeyondTrust (CNA), CISA, FIRST EPSS, GitHub, GitHub Security Advisory, SOCRadar CTI

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Confirmed

CISA KEV, listed Feb 13, 2026

EPSS

90%

ahead of 99.8% of scored CVEs

Affects

BeyondTrust

2 products listed

CVSS base

9.8

critical · 2 sources

CISA SSVC assessment

Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.

CISA

Exploitation

Active

none · proof-of-concept · active

Automatable

Yes

can an attacker script all four kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

The vendor's own words where we have them.

Upgrade Remote Support(RS) & Privileged Remote Access(PRA) to a fixed release. Apply vendor patches per advisory and restrict external exposure of the affected component until patched.

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.

Federal deadline Feb 16, 2026 — passed 220 days ago

First 24 hours

Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.

Identify exposed assets running affected vendor/product/version combinations.
Treat as emergency remediation because CISA KEV status is present.
Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.

Affected scope

Vendor, product and version as the advisories word them.

Vendor	Product	Versions	Status
BeyondTrust	Remote Support(RS) & Privileged Remote Access(PRA)	0	Vulnerable
BeyondTrust	Remote Support(RS) & Privileged Remote Access(PRA)	0	Vulnerable

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Availability

High

Confidentiality

High

Integrity

High

Scope

Unchanged

Attack Complexity

Low

Attack Vector

Network

Privileges Req

None

User Interaction

None

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Source
9.8	CVSS 3.1	critical	3.9	5.9	NVD, GHSA
9.9	CVSS 4.0	critical	—	—	BeyondTrust (CNA)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What this weakness leads to

MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.

MITRE

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Execute Unauthorized Code or Commands
DoS: Crash, Exit, or Restart
Read Files or Directories
Modify Files or Directories

Mitigation: If at all possible, use library calls rather than external processes to recreate the desired functionality.

Weakness & attack patterns

CWE-78OS Command Injection

Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.

CAPEC-15 · Command DelimitersCAPEC-88 · OS Command InjectionCAPEC-43 · Exploiting Multiple Input Interpretation LayersCAPEC-108 · Command Line Execution through SQL InjectionCAPEC-6 · Argument Injection

CISA KEV details

CISA lists a CVE here once it has evidence of exploitation against real targets.

CISAThat month →

Listed

Feb 13, 2026

Federal deadline

Feb 16, 2026

passed 220 days ago

Ransomware use

Known

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a date to argue against.

Public exploit

Capability, not use: code existing is a different claim from anyone running it.

Repositories

1 of the 5 sampled are weaponized

Exploit entries

Exploit-DB and CTI exploit indexes

Social mentions

Posts naming this CVE. Attention, not evidence of exploitation — it spikes on disclosure and decays whether or not anything is exploited.

35 more posts on this CVEShowing 5 of 40 · Who is discussing this CVE, and how loudlyUnlock free

Detection

Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.

Prioritize edge telemetry for network-reachable Remote Support(RS) & Privileged Remote Access(PRA).
Monitor for scanner or exploit-pattern traffic after 72 public PoC repositories were reported.

web/proxy/WAF logsapplication logsnetwork IDS/IPSEDR process telemetryhost service logs

Groups associated with this CVE

Groups reported in connection with this vulnerability. A reported association, not a confirmed observation of that group using it — and not scoped to any sector or campaign.

UNC215BRONZE SPRINGTA428Iron GroupAPT-C-27

10 more threat groups on this CVEShowing 5 of 15 · Attribution, campaigns and the malware each one runsUnlock free

ip110.39.231.3647
GreyList · Nov 29, 2025
ip112.198.238.3045
Maltiverse IP List · May 4, 2025
ip110.39.228.7862
AbuseIPDB Hourly Update · Feb 2, 2026
ip110.36.86.8355
AbuseIPDB Hourly Update · Jan 29, 2026
ip196.189.96.5945
Abuse.ch-Urlhaus-C&Cs · Dec 24, 2024

5 more indicators on this CVEShowing 5 of 10 · Hashes, addresses and domains from a live threat exchangeUnlock free

Timeline

What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.

2026
Added · CVSS 3.1 9.8 (AV:N)
Jun 17, 2026 · NVD
Added to CISA KEV catalog
Feb 13, 2026 · CISA
Added · GHSA-p5wr-5p37-2wm6 published (critical)
Feb 7, 2026 · GitHub Security Advisory
Initial · CVE published
Feb 6, 2026 · NVD

Source activity

Readings a source repeats on a schedule, counted rather than listed.

26×SVRS was changedApr 14, 2026 – Jun 22, 2026 · SOCRadar CTI
12×TweetsApr 19, 2026 – Aug 21, 2026 · SOCRadar CTI
1×Github_Repos · Github repository created, ridhinva/CVE-2026-1731-BeyondTrust-RCEMay 22, 2026 · SOCRadar CTI

References

8 on the record

beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0023293
Permissions Required
www.beyondtrust.com/trust-center/security-advisories/bt26-02
Vendor Advisory
github.com/win3zz/CVE-2026-1731
Exploit, Third Party Advisory, NIST, GITHUB
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-1731
US Government Resource
www.greynoise.io/blog/reconnaissance-beyondtrust-rce-cve-2026-1731
Third Party Advisory, NIST, GITHUB
nvd.nist.gov/vuln/detail/CVE-2026-1731
NVD, Vendor Advisory
github.com/advisories/GHSA-p5wr-5p37-2wm6
Exploit, Third Party Advisory
beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0023293
NIST

Coverage

20 stories from the feeds we poll

15 more reports on this CVEShowing 5 of 20 · Vendor research and security press coverageUnlock free

Elsewhere on this site

BeyondTrustevery CVE for this vendor
February 2026what else CISA listed
Remote Code Execsame class
CWE-78other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

Only the 5 indicator(s) reported for this CVE are available; no packet-level or host-forensic artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record1

What should defenders know first?

CVE-2026-1731 is Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA), a critical vulnerability affecting Remote Support(RS) & Privileged Remote Access(PRA) from BeyondTrust. The current evidence lists it in CISA KEV, and the exploit status is: Yes: CISA KEV signal present. Public exploit evidence is: 72 public PoC repositories reported; 1 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 9.8 describes technical severity, while EPSS 90% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.