BeyondTrust · Auth bypass
BeyondTrust Remote Support Authentication Bypass Vulnerability
At a glance
Actively exploited in the wild — prioritise confirming exposure.
Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on BeyondTrust Remote Support, treat it as High.
Briefing
- Organisations using BeyondTrust Remote Support should assess their exposure to this vulnerability and consider mitigation strategies.
- The confirmed exploitation of CVE-2026-102764 highlights the need for immediate security review of affected systems.
Questions to ask IT
- Do we run BeyondTrust Remote Support and Rapid7, and which versions?
- Is any of it reachable from the internet?
- Have we checked whether it has already been used against us?
- If it is not yet patched, what mitigation is in place, and will the fix be done by 12 Nov?
Next steps
- Confirm exposure and remediation status for affected products
Vulnerability facts
Full CVE detail CVE-2026-102764- 9.3 · CriticalExploitable over the network without any account, and no one has to click or open anything. High impact on confidentiality, integrity and availability.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
- Listed: attacks using it have been seen (on the catalogue since )
- Elevated attack likelihood (~78% in 30 days)
These facts are for CVE-2026-102764. This event covers 1 more CVE, each with its own record.
- The vulnerability allows unauthenticated attackers to write files on the appliance and execute code as the site's operating-system user.
- The entry point is the public customer connection used to start a support session with no account credentials or user interaction required.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- An origin-validation flaw in BeyondTrust Remote Support allows an unauthenticated attacker to write files on the appliance and execute code as the site's operating-system user.
- The vulnerability is accessible via the public customer connection used to start a support session, requiring no account credentials or user interaction.
- The flaw exists between the internal message router, brain, and an appliance-side customer worker, thin-scc.
- CVE-2026-102764 is confirmed as exploited in the wild according to the US known-exploited catalogue.
Products and services involved
- BeyondTrust Remote Support93% match confidence · CVE-2026-102764
- Rapid792% match confidence · CVE-2026-102764
Part of Multiple authentication bypass vulnerabilities disclosed
Same event, different frames
Distinct often headline the same incident differently.
Pulse
Last checked 3d ago · Recheck overdue since 6 Nov 2026, 14:51 UK time
in the next 30 days first recorded at 93.9% (elevated likelihood signal, not confirmed exploitation).
Elevated — confirm exposure; this is a probability signal, not confirmed exploitation.
Sources
- SecurityWeekNews
Chinese APT Exploited BeyondTrust Vulnerability as Zero-Day
CVE-2026-102764: Critical BeyondTrust Remote Support Zero-Day Exploited by China-Linked Hackers
BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
- CISA Cybersecurity AdvisoriesOfficial
CISA Urges Patching Critical Vulnerability in BeyondTrust Remote Support
CVE-2026-102764: Critical BeyondTrust Remote Support Authentication Bypass Exploited in the Wild
Rapid7 Analysis: Unauthenticated File Upload to RCE in BeyondTrust Remote Support (CVE-2026-102764)
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ClaimedHeadline60% confidence
BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
- ProbableSummary fact75% confidence
An origin-validation flaw in BeyondTrust Remote Support lets an unauthenticated attacker write files on the appliance and execute code as the site's operating-system user. The entry point is the public customer connection used to start a support session. No account credentials or user interaction are required. The flaw sits between the internal message router, brain, and an appliance-side customer worker, thin-scc.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-102764
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-102764 is confirmed as exploited in the wild (US known-exploited catalogue)

