CVE-2026-58599: Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.

PriorityP346high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

EPSS

0.47%

39.4th percentile

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
microsoft	hevc_video_extensions	< 2.4.87.0	2.4.87.0
microsoft	hevc_video_extensions	>= 1.0.0 < 2.4.87.0	2.4.87.0
microsoft	hevc_video_extensions_for_licensed_applications	< 2.4.85.0	2.4.85.0
microsoft	hevc_video_extensions_for_licensed_applications	>= 2.0.0.0 < 2.4.85.0	2.4.85.0
microsoft	hevc_video_extensions_from_device_manufacturer	< 2.4.86.0	2.4.86.0
microsoft	hevc_video_extensions_from_device_manufacturer	< 2.5.25.0	2.5.25.0
microsoft	hevc_video_extensions_from_device_manufacturer	>= 2.0.0.0 < 2.4.86.0	2.4.86.0

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