CVE-2026-102764

Status: AnalyzedCritical (9.3)⚠ Active exploitationPoC

Severity9.3Critical · CVSS 4.0

Exploitation probability1.18 %higher than 67% of CVEs

Active exploitationYesconfirmed by CISA on 10/16/2026

Public exploitAvailableProof of concept on GitHub (unverified)

News and reports on Orbitaley

The vulnerability exists within internal components of BeyondTrust’s Remote Support product. The components did not adequately validate the origin of the messages it received. Under the right conditions, this could allow an attacker to perform file operations on the appliance.

CVSS

Base score: 9.3
Version: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.18 %
Percentile among all scored CVEs: 67
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

CISA KEV — actively exploited

Added to catalog: 10/16/2026
Remediation due date: 10/19/2026
Known ransomware use: Unknown

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Proof of concept on GitHub (unverified) · List of proofs of concept on GitHub

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Media coverage

Specialised security media that have cited this CVE:

Rapid7 · CVE-2026-102764: Critical BeyondTrust Remote Support Authentication Bypass Exploited in the Wild (10/19/2026)
Minuto da Segurança · Falha zero-day no BeyondTrust abriu caminho para sistemas internos (10/17/2026)
El Hacker · Grupos chinos usan zero-day de BeyondTrust para acceso root y backdoors (10/17/2026)
Canadian Centre for Cyber Security · AL26-025 - Critical vulnerability impacting BeyondTrust Remote Support – CVE-2026-102764 (10/16/2026)
CERT-SE · BeyondTrust varnar för kritisk nolldagssårbarhet (10/16/2026)
Canadian Centre for Cyber Security · BeyondTrust security advisory (AV26-1054) (10/16/2026)
CISA · CISA Adds Two Known Exploited Vulnerabilities to Catalog (10/16/2026)
CISA · CISA Urges Patching Critical Vulnerability in BeyondTrust Remote Support (10/16/2026)
SecurityWeek · Chinese APT Exploited BeyondTrust Vulnerability as Zero-Day (10/16/2026)
SecNews.gr · Κινέζοι hackers εκμεταλλεύτηκαν zero-day BeyondTrust Remote Support (10/16/2026)
El Hacker · BeyondTrust corrige un fallo de día cero aprovechado en ataques desde agosto (10/16/2026)
NCSC-NL · NCSC-2026-0437 [1.00] [H/H] Kwetsbaarheid verholpen in BeyondTrust Remote Support (10/16/2026)

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access90 %

Vector AV:N/PR:N/UI:N permite explotación remota sin credenciales; el texto solo indica operaciones de archivos en el appliance, sin precisar lectura o modificación de datos.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Isolation and Sandboxing

Affected technologies (1)

Beyondtrust — Remote Support

CWEs

CWE-290

References

Show 4 references

Raw JSON (NVD)

Show

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