Fresh probes target critical BeyondTrust Remote Support flaw CVE-2026-102764
CRITICAL · VULNERABILITYCVE-2026-102764redteam/daily · 2 sources
- Severity
- Critical
- Exploited
- Yes
- Sources
- 2
What happened
Previdian reported two probes against decoy BeyondTrust Remote Support appliances in the US and Europe, both from one Hong Kong IP address, targeting POST /api/startsession. The traffic resembled a Metasploit module under review, though not an exact match, and no successful exploitation was observed. The flaw is CVE-2026-102764 (CVSS 9.3), which affects Remote Support 26.2.3 and earlier, and CISA has added it to the Known Exploited Vulnerabilities catalogue.
For IT people · Written by AI from 2 sources · Wrong?
What to do
- Apply the BT26-05-RS patch to self-hosted Remote Support appliances, upgrading older releases first.
- Limit external access to Remote Support appliances and restrict administrative interfaces to trusted networks.
- Check appliances for unknown privileged sessions, unexpected scripts, missing logs and unauthorised account or permission changes.
- If compromise is suspected, isolate the appliance, preserve forensic evidence, rebuild from a known-good state, rotate managed credentials, revoke support sessions and review new MFA registrations.
Written by AI from the sources, checked against them
Vulnerabilities
Full story timeline · 5 updates
- Fri 16 OctoberCVE-2025-61624 added to CISA’s exploited listCISA KEV
- CVE-2026-102764 added to CISA’s exploited listCISA KEV
- CISA Urges Patching Critical Vulnerability in BeyondTrust Remote SupportCISA Alerts
- CISA Adds Two Known Exploited Vulnerabilities to CatalogCISA Alerts
- Mon 2 NovemberCritical BeyondTrust Vulnerability Faces Fresh Exploitation Probes as Hackers Prepare for Mass ScanningCyber Security News
Who reported · 2 outlets
CISA AlertsCyber Security News
Who and what is in it
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