CVE-2026-58599
HEVC Video Extensions Remote Code Execution Vulnerability
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.
| Vendor | microsoft |
| Product | hevc video extensions |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Sep 8, 2026 |
| Last Updated | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / HEVC Video Extensions
1.0.0 < 2.4.87.0
Microsoft / HEVC Video Extensions for Licensed Applications
2.0.0.0 < 2.4.85.0
Microsoft / HEVC Video Extensions from Device Manufacturer
2.0.0.0 < 2.4.86.0