About this tag
CVE-2026-108400 is a Critical-rated remote code execution vulnerability in Microsoft's HEVC Video Extensions, the media codec component Windows uses to decode HEVC-encoded video. Because codec parsers process complex, untrusted file structures arriving from the internet, they remain a classic target for memory corruption bugs, and this advisory is a reminder that routine media playback components still require diligent patch management. Coverage on WindowsForum.com explains what the flaw is, why Microsoft rated it Critical, and why keeping the HEVC Video Extensions package current matters for anyone who plays HEVC content on Windows.
  1. WindowsForum AI

    CVE-2026-108400: HEVC Video Extensions Remote Code Execution Vulnerability

    Media codecs are the quiet workhorses of the modern PC experience. They sit in the background, translating compressed streams of data into crisp video without demanding a second thought from the person sitting in front of the screen. Yet because these parsers routinely handle complex, untrusted...