Advisoriesby IbisMicrosoftCVE-2026-61359
Microsoft Windows Storage: heap buffer overflow
Fix: upgrade to 10.0.22631.7517 or later (6 fixed versions below)
Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Windows 11 Version 23H2 Product | >= 10.0.22631.0, < 10.0.22631.7517 | 10.0.22631.7517 |
| Windows 11 Version 24H2 Product | >= 10.0.26100.0, < 10.0.26100.9168 | 10.0.26100.9168 |
| Windows 11 Version 25H2 Product | >= 10.0.26200.0, < 10.0.26200.9168 | 10.0.26200.9168 |
| Windows 11 version 23H2 Product | >= 10.0.22631.0, < 10.0.22631.7517 | 10.0.22631.7517 |
| Windows 11 version 26H1 Product | >= 10.0.28000.0, < 10.0.28000.2704 | 10.0.28000.2704 |
| Windows Server 2022 Product | >= 10.0.20348.0, < 10.0.20348.5499 | 10.0.20348.5499 |
| Windows Server 2025 Product | >= 10.0.26100.0, < 10.0.26100.33296 | 10.0.26100.33296 |
| Windows Server 2025 (Server Core installation) Product | >= 10.0.26100.0, < 10.0.26100.33296 | 10.0.26100.33296 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-122