CVE-2026-38973

NONECVSS 0.0Trending — 3 sources updated this week
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: —CVSS: —Exploit: NoneExposed: 0

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

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbc_find_method().

CVSS v3
—
EG Score
0.0(none)
EPSS
—
KEV
Not listed

Published

July 6, 2026

Last Modified

July 6, 2026

References (3)

Vendor Advisories for CVE-2026-38973(1)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 3× 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. 2026-07-06 22:49 UTCNVD update
  2. 2026-07-06 21:45 UTCEG score recompute
  3. 2026-07-06 21:44 UTCMITRE cvelistV5first tracked

Frequently asked(3)

What is CVE-2026-38973?
CVE-2026-38973 is a none vulnerability published on July 6, 2026. mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbcfindmethod().
When was CVE-2026-38973 disclosed?
CVE-2026-38973 was first published in the National Vulnerability Database on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
How do I remediate CVE-2026-38973?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38973, 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-2026-38973

Explore →

Is Your Infrastructure Affected by CVE-2026-38973?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs