CVE-2026-102764

CRITICALNVD 9.89.8
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-10-16), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — KEV-added this weekExploited in the wild
9.8EG
EchelonGraph verdictMitigate nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low mission impact
CISA-KEV: ExploitedEPSS PROB: 1.2%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (BeyondTrust Inc.) lists BeyondTrust Remote Support versions up to and including 26.2.3 as affected. No release containing a fix is confirmed on record.

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 v3
9.8
EG Score
9.8CRITICALhigh confidence
EG Risk
99
EG Risk 99/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Attend at low mission impact; Act at medium or high.
Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation sooner than your standard update timelines at low mission impact and as soon as possible at medium or high, and watch the vendor's advisory for the fix.
EPSS PROB
1.2%
EPSS %ILE
67th
KEV
⚠ Exploited

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Act at medium mission impactAttend at low mission impact; Act at medium or high.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Attend at low mission impact; Act at medium or high.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation sooner than your standard update timelines at low mission impact and as soon as possible at medium or high, and watch the vendor's advisory for the fix.

Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.

In CISA KEV yes (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA 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.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://www.beyondtrust.com/trust-center/security-advisories/bt26-05 · https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk · https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk · https://nvd.nist.gov/vuln/detail/CVE-2026-102764

Published

October 15, 2026

Last Modified

October 17, 2026

Advisory Details (2)

Auto-updated Oct 17, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). No fix on record yet. Sources: cisa.
CISA🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102764

Vendor Advisories for CVE-2026-102764(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 22× in last 7d / 22× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-18 03:57 UTCEG score recompute
  2. 2026-10-18 03:57 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-17 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  4. 2026-10-17 04:27 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-17 04:03 UTCEG score recompute
  6. 2026-10-17 04:03 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-16 20:09 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL
  8. 2026-10-16 19:28 UTCEG score recompute▲ 0.50
  9. 2026-10-16 19:27 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL
  10. 2026-10-16 19:25 UTCNVD updateCVSS v3 → 9.8
  11. 2026-10-16 18:29 UTCEG score recompute
  12. 2026-10-16 18:28 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL
  13. 2026-10-16 18:03 UTCEG score recompute
  14. 2026-10-16 18:03 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL
  15. 2026-10-16 17:37 UTCEG score recompute
  16. 2026-10-16 17:37 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL
  17. 2026-10-16 17:36 UTCCISA KEV update
  18. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  19. 2026-10-16 16:06 UTCGHSA enrichmentGHSA-pf95-v8m2-73q8 · GitHub severity CRITICAL
  20. 2026-10-15 21:26 UTCEG score recompute
  21. 2026-10-15 20:38 UTCEG score recomputeFirst assessed: 9.3 CRITICAL
  22. 2026-10-15 20:37 UTCMITRE cvelistV5first tracked

Frequently asked(6)

What is CVE-2026-102764?
CVE-2026-102764 is a critical-severity vulnerability; its CVE record was published on October 15, 2026. 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.
When was the CVE record for CVE-2026-102764 published?
The CVE record for CVE-2026-102764 was published on October 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 17, 2026; the record at its source may have been updated since.
Is CVE-2026-102764 actively exploited?
Yes. CISA added CVE-2026-102764 to the Known Exploited Vulnerabilities catalog on October 16, 2026, affecting BeyondTrust Remote Support. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation, and watch the vendor's advisory for the fix.
What is the CVSS score of CVE-2026-102764?
CVE-2026-102764 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2026-102764?
CVE-2026-102764 affects BeyondTrust Remote Support.
How do I remediate CVE-2026-102764?
No fix for CVE-2026-102764 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (BeyondTrust Inc.) lists BeyondTrust Remote Support versions up to and including 26.2.3 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-102764 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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