The US Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-102764, a BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability, to its Known Exploited Vulnerabilities (KEV) catalog on October 16, 2026. CISA adds a flaw to the catalog when it has reliable evidence that attackers are exploiting it in the wild.
What CISA says
BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote attacker to perform file operations on the appliance.
— CISA KEV catalog entry for CVE-2026-102764
Key facts
| CVE | CVE-2026-102764 |
|---|---|
| Vendor / product | BeyondTrust Remote Support |
| Added to KEV | October 16, 2026 |
| Federal deadline | October 19, 2026 |
| Known ransomware use | Unknown |
| Weakness (CWE) | CWE-290 |
| CISA forensic triage | Yes |
| CVSS base score (NVD) | 9.3 Critical |
| CVSS 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 |
Who has to act, and by when
US federal civilian executive branch agencies are required to remediate the vulnerability by October 19, 2026. CISA urges all organizations to prioritize KEV-listed flaws as part of their vulnerability management.
CISA’s required action for this entry:
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
References
- CISA Known Exploited Vulnerabilities Catalog https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- NIST NVD — CVE-2026-102764 https://nvd.nist.gov/vuln/detail/CVE-2026-102764
- www.beyondtrust.com https://www.beyondtrust.com/trust-center/security-advisories/bt26-05
- www.cisa.gov https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- www.cisa.gov https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk