CVE-2026-47876

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreHIGH confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-30. a secondary CVSS source baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: None knownExposed: 0

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

VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Non VMXNET3 virtual adapters are not affected by this issue.

CVSS v3
9.3
EG Score
9.3(high)
EG Risk
42(Track)
EG Risk 42/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

July 30, 2026

Last Modified

July 30, 2026

Advisory Details (1)

Auto-updated Aug 1, 2026
No patch confirmed yet.
generic

Support Content Notification - Support Portal - Broadcom support portal

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017

Vendor Advisories for CVE-2026-47876(3)

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 18× in last 7d / 18× 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. 2026-08-01 08:01 UTCGHSA enrichment
  2. 2026-08-01 04:19 UTCEG score recompute
  3. 2026-08-01 04:19 UTCGHSA enrichment
  4. 2026-08-01 04:16 UTCEPSS rescore
  5. 2026-08-01 00:34 UTCGHSA enrichment
  6. 2026-07-31 20:45 UTCGHSA enrichment
  7. 2026-07-31 17:01 UTCGHSA enrichment
  8. 2026-07-31 13:16 UTCGHSA enrichment
  9. 2026-07-31 09:34 UTCGHSA enrichment
  10. 2026-07-31 05:51 UTCGHSA enrichment
  11. 2026-07-31 02:09 UTCGHSA enrichment
  12. 2026-07-30 22:25 UTCGHSA enrichment
  13. 2026-07-30 18:44 UTCEG score recompute
  14. 2026-07-30 18:44 UTCGHSA enrichment
  15. 2026-07-30 14:30 UTCEG score recompute
  16. 2026-07-30 13:21 UTCEG score recompute
  17. 2026-07-30 12:47 UTCEG score recompute
  18. 2026-07-30 12:46 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-47876?
CVE-2026-47876 is a critical vulnerability published on July 30, 2026. VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Non VMXNET3 virtual adapters are not…
When was CVE-2026-47876 disclosed?
CVE-2026-47876 was first published in the National Vulnerability Database on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47876 actively exploited?
CVE-2026-47876 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.6% of all scored CVEs.
What is the CVSS score of CVE-2026-47876?
CVE-2026-47876 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-47876?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47876, 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-2026-47876

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