PT-2026-112664 · Microsoft · Windows+4
CVE-2026-83903
·
Published
2026-10-13
·
Updated
2026-10-13
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Windows Direct Composition (affected versions not specified)
Description
A heap-based buffer overflow occurs in Windows Direct Composition, which allows an authorized attacker to elevate privileges locally. A heap-based buffer overflow is a memory corruption issue that happens when a program writes more data to a heap-allocated buffer than it can hold.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Heap Based Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Windows
Windows 11 Version 24H2
Windows 11 Version 25H2
Windows 11 Version 26H2
Windows Server 2025