#VU122563 Out-of-bounds read in Windows and Windows Server - CVE-2026-20846
Published: February 10, 2026
Vulnerability identifier: #VU122563
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-20846
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in GDI+. A remote attacker can trigger an out-of-bounds read error and cause a denial of service condition on the system.
Remediation
Install updates from vendor's website.