Use-after-free in Windows and Windows Server - CVE-2026-58608
Published: July 17, 2026
Vulnerability identifier: #VU137951
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-58608
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to a use-after-free in Windows Print Spooler Components when handling crafted interactions with the print spooler service. A remote user can create and close a printer handle without properly invalidating a related notification handle to execute arbitrary code.
How to mitigate CVE-2026-58608
Install security update from vendor's website.