CVE-2015-6130: Microsoft Windows 7

High severity, CVSS 9.3. EPSS: 20.7% chance of exploitation in the next 30 days.

Integer underflow in Uniscribe in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows remote attackers to execute arbitrary code via a crafted font, aka "Windows Integer Underflow Vulnerability."

Affected products

• Microsoft Windows 7: any version
• Microsoft Windows Server 2008: version r2 only

Published 2015-12-09. Last modified 2026-06-17.