CVE-2026-58542

Windows Media Remote Code Execution Vulnerability

State: Published
Severity: 7.8 High
Published: Jul 14, 2026
Updated: Nov 1, 2026
Reserved: Jul 1, 2026

Description

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

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	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	microsoft

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.8875Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.8875Affected
Windows 11 version 26H1Microsoft	10.0.28000.0 to before 10.0.28000.2525Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.33158Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.33158Affected

References

Windows Media Remote Code Execution Vulnerabilityvendor-advisorypatch

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