Integer Overflow Vulnerability in Windows Win32K Graphics Component
CVE-2026-44803

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Excel For Android
Microsoft Powerpoint For Android
Microsoft Word For Android
Windows 10 Version 1607
Vendor
CVE Published:
9 June 2026

What is CVE-2026-44803?

A vulnerability in the Windows Win32K graphics component allows unauthorized attackers to exploit an integer overflow condition. This could lead to remote code execution on affected systems. It is crucial for users and administrators to apply security patches provided by Microsoft to mitigate the risks associated with this vulnerability.

Affected Version(s)

Microsoft Excel for Android 16.0.0.0 < 16.0.20131.20024

Microsoft PowerPoint for Android 16.0.0.0 < 16.0.20131.20024

Microsoft Word for Android 16.0.0.0 < 16.0.20131.20024

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.