CVE-2026-40138

CRITICALPre-NVD 9.29.2
EchelonGraph scoreLOW confidence

This critical-severity CVE scores 9.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: secondary
Trending — 3 sources updated this week
9.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: —CVSS: 9.2Exploit: NoneExposed: 0

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

A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access. Improper validation of authentication data may allow a network-positioned attacker to bypass access controls and gain unauthorized access to the appliance, including accounts with elevated privileges. Exploitation requires a specific authentication configuration to be enabled

CVSS v3
9.2
EG Score
9.2(low)
EPSS
—
KEV
Not listed

Published

July 6, 2026

Last Modified

July 7, 2026

References (1)

Vendor Advisories for CVE-2026-40138(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 10× in last 7d / 10× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-07 08:27 UTCEG score recompute
  2. 2026-07-07 08:27 UTCGHSA enrichment
  3. 2026-07-07 04:29 UTCEG score recompute
  4. 2026-07-07 04:29 UTCGHSA enrichment
  5. 2026-07-07 00:33 UTCEG score recompute
  6. 2026-07-07 00:33 UTCGHSA enrichment
  7. 2026-07-06 20:37 UTCEG score recompute
  8. 2026-07-06 20:37 UTCGHSA enrichment
  9. 2026-07-06 16:43 UTCEG score recompute
  10. 2026-07-06 16:41 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-40138?
CVE-2026-40138 is a critical vulnerability published on July 6, 2026. A critical pre-authentication vulnerability exists in the authentication subsystem of BeyondTrust Remote Support and Privileged Remote Access. Improper validation of authentication data may allow a network-positioned attacker to bypass access controls and gain unauthorized access to the appliance,…
When was CVE-2026-40138 disclosed?
CVE-2026-40138 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-40138?
CVE-2026-40138 has a CVSS v3 base score of 9.2 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-40138?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40138, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-40138

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