CVE-2026-58599
High
Description
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Microsoft Hevc Video Extensions
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- microsoft hevc_video_extensions2.4.87.0 or later
- microsoft hevc_video_extensions_for_licensed_applications2.4.85.0 or later
- microsoft hevc_video_extensions_from_device_manufacturer2.4.86.0, 2.5.25.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft hevc_video_extensions | v < 2.4.87.0 | 2.4.87.0 |
| microsoft hevc_video_extensions_for_licensed_applications | v < 2.4.85.0 | 2.4.85.0 |
| microsoft hevc_video_extensions_from_device_manufacturer | v < 2.4.86.0, v < 2.5.25.0 | 2.4.86.0, 2.5.25.0 |
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