What is CVE-2026-9939?

CVE-2026-9939 is a security advisory published by Microsoft Security Response Center (MSRC). Chromium: CVE-2026-9939 Heap buffer overflow in WebCodecs

Which CVE IDs does CVE-2026-9939 cover?

CVE-2026-9939 covers the following CVE IDs: CVE-2026-9939. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-9939

Chromium: CVE-2026-9939 Heap buffer overflow in WebCodecs

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-9939 →

🔗 CVE IDs covered (1)

📋 Description