Status: UPDATED | Advisory ID: CVE-2026-58599
| CVE | CVE-2026-58599 |
| CVSS Score / Version | 7.8 (High) / CVSS v3.1 |
| Updated | 2026-10-01 |
| CVSS Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is local; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | see table below |
| Classified as | CWE-122 (Heap-based Buffer Overflow) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Microsoft | hevc_video_extensions | ||
| Microsoft | hevc_video_extensions_for_licensed_applications | ||
| Microsoft | hevc_video_extensions_from_device_manufacturer | ||
| Microsoft | HEVC Video Extensions | ||
| Microsoft | HEVC Video Extensions for Licensed Applications | ||
| Microsoft | HEVC Video Extensions from Device Manufacturer |
| Subsystems | General OT |
| Sectors | Multiple |
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.
Monitor Microsoft's web page for any future patch releases. See vendor advisory link below.