CVE-2026-34336
Modified
Modified - Updated After Analysis
BaseFortify
Publication date: 2026-05-12
Last updated on: 2026-06-01
Assigner: Microsoft Corporation
Description
Description
Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_10_1607 | to 10.0.14393.9140 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.8755 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.7291 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7291 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.7079 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.8390 (exc) |
| microsoft | windows_11_25h2 | to 10.0.26200.8390 (exc) |
| microsoft | windows_11_26h1 | to 10.0.28000.2113 (exc) |
| microsoft | windows_server_2016 | to 10.0.14393.9140 (exc) |
| microsoft | windows_server_2019 | to 10.0.17763.8755 (exc) |
| microsoft | windows_server_2022 | to 10.0.20348.5074 (exc) |
| microsoft | windows_server_2022_23h2 | to 10.0.25398.2330 (exc) |
| microsoft | windows_server_2025 | to 10.0.26100.32772 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
| CWE-126 | The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. |