CVE-2026-50359

EUVD-2026-44235 · Published Jul 14, 2026

Use after free in Microsoft XML Core Services allows an authorized attacker to elevate privileges locally.

Technologies

Microsoft Windows 10 22H2Microsoft Windows Server 2019Microsoft Windows 10 1809Microsoft Windows 10 21H2Microsoft Windows Server 2025Microsoft Windows 11 25H2Microsoft Windows 11 26H1Microsoft Windows Server 2016Microsoft Windows Server 2022Microsoft Windows 10 1607Microsoft Windows Server 2012Microsoft Windows 11 24H2

Weaknesses

CWE-416

CVSS scores

v3.17.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Privilege Escalation

T1068Exploitation for Privilege Escalation

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50359

Potentially impacted assets

See if this affects your attack surface

CVE-2026-50359

Technologies

Weaknesses

CVSS scores

MITRE ATT&CK

References

Potentially impacted assets

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