CVE-2026-34332
Windows Kernel-Mode Driver Remote Code Execution Vulnerability
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Kernel-Mode Driver Remote Code Execution Vulnerability
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
- Record
CVE-2026-34332- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-416
- Updated
- 2026-11-02
EUVDEUVD-2026-29592
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
- Record
EUVD-2026-29592- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qj47-r3gf-wx2h
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over...
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
- Record
GHSA-qj47-r3gf-wx2h- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
- Record
CVE-2026-34332- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-34332 is a high vulnerability (CVSS 8.0) in Microsoft Windows Server 2025, published May 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 43rd percentile. No source names a fixed version.