CVE-2026-62432

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-07-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, ghsa
Trending — 4 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.3Exploit: None knownExposed: 0

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

The EVTCHNOP_expand_array hypercall checks for whether FIFO event channels are enabled, but without holding the correct lock. It can race with EVTCHNOP_reset, resulting in dereferencing a NULL pointer.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

July 28, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
No patch confirmed yet.
generic

XSA-505 - Xen Security Advisories

http://xenbits.xen.org/xsa/advisory-505.html
generic

XSA-505 - Xen Security Advisories

https://xenbits.xenproject.org/xsa/advisory-505.html

Vendor Advisories for CVE-2026-62432(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 15× in last 7d / 15× 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. 2026-07-29 18:20 UTCGHSA enrichment
  2. 2026-07-29 05:52 UTCEG score recompute
  3. 2026-07-29 05:51 UTCGHSA enrichment
  4. 2026-07-28 17:23 UTCGHSA enrichment
  5. 2026-07-28 16:56 UTCGHSA enrichment
  6. 2026-07-28 16:21 UTCGHSA enrichment
  7. 2026-07-28 16:19 UTCNVD updateCVSS v3 → 7.3 · severity → HIGH
  8. 2026-07-28 16:19 UTCNVD update
  9. 2026-07-28 15:30 UTCEG score recompute▲ 7.30
  10. 2026-07-28 15:29 UTCMITRE cvelistV5CVSS v3 → 7.3 · severity → HIGH
  11. 2026-07-28 14:34 UTCNVD update
  12. 2026-07-28 13:43 UTCMITRE cvelistV5
  13. 2026-07-28 13:31 UTCNVD update
  14. 2026-07-28 13:05 UTCEG score recompute
  15. 2026-07-28 13:03 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-62432?
CVE-2026-62432 is a high vulnerability published on July 28, 2026. The EVTCHNOPexpandarray hypercall checks for whether FIFO event channels are enabled, but without holding the correct lock. It can race with EVTCHNOP_reset, resulting in dereferencing a NULL pointer.
When was CVE-2026-62432 disclosed?
CVE-2026-62432 was first published in the National Vulnerability Database on July 28, 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-2026-62432?
CVE-2026-62432 has a CVSS v3.1 base score of 7.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-62432?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62432, 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-2026-62432

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