CVE-2026-102764
CriticalExploitedPublic exploitImproper Origin Validation in Internal Messaging Components of BeyondTrust Remote Support
Published Oct 15, 2026 · Updated Oct 17, 2026 · Also known as EUVD-2026-102427, GHSA-pf95-v8m2-73q8
Key Facts
Patch immediately- CVE-2026-102764 is a critical-severity vulnerability (CVSS 9.3 v4) affecting Remote Support (Beyondtrust).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 15, 2026. Public exploit code is available.
- EPSS estimates a 1.2% probability of exploitation in the next 30 days.
- Fixed versions are available, including Remote Support 26.2.3.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
9.3
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
EPSS (30-day exploit likelihood)
1.2%
Higher than 67.1% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-102764 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Oct 16, 2026 | Oct 19, 2026 | Not reported |
| Industry KEV feed | Oct 15, 2026 | Oct 19, 2026 | Not reported |
| CIRCL KEV | Oct 16, 2026 | Oct 19, 2026 | Not reported |
| ENISA EUVD | Oct 16, 2026 | n/a | Not reported |
Required action: 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.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Remote SupportBeyondtrust | See advisory | 26.2.3 |
Patched Releases
Remote Support
26.2.3
Timeline
Publicly disclosed
Oct 15, 2026
Added to Industry KEV feed
Oct 15, 2026
Added to CISA KEV
Oct 16, 2026
Added to CIRCL KEV
Oct 16, 2026
Added to ENISA EUVD
Oct 16, 2026
Last updated
Oct 17, 2026
Weakness Type
- CWE-290 Authentication Bypass by Spoofing
References
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- otherhttps://beyondtrustcorp.service-now.com/csm?id=csm_kb_article&sysparm_article=KB0024066
- otherhttps://nvd.nist.gov/vuln/detail/CVE-2026-102764
- otherVulnCheck exploitation report
FAQ
Common Questions.
The vulnerability exists within internal components of BeyondTrust’s Remote Support product.
Affected: Remote Support (Beyondtrust). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 15, 2026.
Yes. It was added on Oct 16, 2026 with a federal remediation due date of Oct 19, 2026.
Public exploit code is available.
Fixed versions are available, including Remote Support 26.2.3.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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