Vulnerability · Published May 12, 2026 · Assigned by microsoft
CVE-2026-34332Windows Kernel-Mode Driver Remote Code Execution Vulnerability
High 8.0
In plain English
A high-severity use-after-free in Windows Server 2025 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.5%top 56.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2025 | 10.0.26100.0 – before 10.0.26100.32860 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – before 10.0.26100.32860 |
Weakness: CWE-416 · Vector: 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
References
- Windows Kernel-Mode Driver Remote Code Execution Vulnerability vendor-advisory, patch