CVE-2026-54122
Windows GDI+ Remote Code Execution Vulnerability
Description
Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.
In plain language
AI Act nowThis is a Windows GDI+ flaw that can let an attacker run arbitrary code on your device without needing a login; if you’re running supported Windows versions, you should act and install the available fixes.
Executive summary
CVE-2026-54122 is a heap-based buffer overflow in Windows GDI+ that enables local arbitrary code execution without authentication or user interaction.
If affected, business impact
Full device takeoverMalware installationData theft from the systemOperational disruption
What to do now
- Check which affected Windows edition and version you run (Windows 10/11 or Windows Server 2012/2012 R2/2016/2019/2022/2025).
- Verify whether your system has already been updated to one of the fixed build numbers listed by Microsoft for your specific Windows edition.
- If you are not at a fixed build, apply the Microsoft update that addresses CVE-2026-54122 from the MSRC update guide.
- After updating, confirm the installed build number is now at or above the fixed value for your edition.
Patch / advisory Usually a quick update
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Microsoft
commercial·US
and 22 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Privilege Escalation
References
News mentions
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