ozone uaf

About this tag
The tag 'ozone uaf' on WindowsForum.com covers discussions about use-after-free vulnerabilities in the Ozone abstraction layer of the Chromium browser engine, particularly as they affect Microsoft Edge. A key thread examines CVE-2025-12438, a use-after-free in Ozone, and how Microsoft Edge ingests Chromium fixes to verify patches. The content explains that Microsoft records such vulnerabilities in its Security Update Guide to inform Edge customers about their build's vulnerability status and which downstream build contains the upstream fix. This tag is relevant for users tracking browser security updates, Chromium-based browser vulnerabilities, and Microsoft's patch verification process for Edge.
  1. CVE-2025-12438: How Edge Ingests Chromium Fixes and Verifies Patch

    Chromium’s recent CVE-2025-12438 — a use‑after‑free in Ozone — has been recorded in Microsoft’s Security Update Guide because Microsoft Edge (Chromium‑based) consumes Chromium’s open‑source engine; the entry is Microsoft’s way of telling Edge customers whether their installed Edge build is still...