HIGH
Windows Win32k Elevation of Privilege Vulnerability
Published Sep 8, 2026
7.8
HIGHCVSS 3.1
EPSS 0.33%
Description
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
Affected products
-
Affected
- ≥ 10.0.26100.0, < 10.0.26100.9445
-
Affected
- ≥ 10.0.26200.0, < 10.0.26200.9445
-
Affected
- ≥ 10.0.28000.0, < 10.0.28000.2954
-
Affected
- ≥ 10.0.26100.0, < 10.0.26100.33438
-
Affected
- ≥ 10.0.26100.0, < 10.0.26100.33438
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Microsoft | Windows 11 Version 24H2 | unknown | Affected
|
| Microsoft | Windows 11 Version 25H2 | unknown | Affected
|
| Microsoft | Windows 11 version 26H1 | unknown | Affected
|
| Microsoft | Windows Server 2025 | unknown | Affected
|
| Microsoft | Windows Server 2025 (Server Core installation) | unknown | Affected
|
OR
- < 10.0.26100.9445
- < 10.0.26100.9445
- < 10.0.26200.9445
- < 10.0.26200.9445
- < 10.0.28000.2954
- < 10.0.28000.2954
- < 10.0.26100.33438
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73467 Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69348 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73467 | Advisory | |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69348 | vendor-advisorypatchVendor Advisory |
Change history (1)
- EUVD
Updated
changed from Oct 1, 2026 to Oct 7, 2026Oct 1, 2026 → Oct 7, 2026
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Sep 8, 2026
Updated Oct 7, 2026
Reserved Aug 3, 2026
Link CVE-2026-69348
CISA Vulnrichment
Updated Sep 3, 2026
Red Hat
No data
GitHub
No data