Is CVE-2013-3903 being actively exploited?

CVE-2013-3903 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-3903?

CVE-2013-3903 has a CVSS 2.0 base score of 4.7 (MEDIUM).

CVE-2013-3903

MEDIUM · CVSS 4.7EPSS 1.8%EU EUVD

Array index error in win32k.sys in the kernel-mode drivers in Microsoft Windows 8, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to cause a denial of service (reboot) via a crafted TrueType font (TTF) file, aka "TrueType Font Parsing Vulnerability."

Key facts

CVSS score: 4.7 (v2.0)
Severity: MEDIUM
CVSS vector: AV:L/AC:M/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-20
EPSS score: 1.8% (79th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-3835)
Published: December 11, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-3835 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / windows 8
microsoft / windows 8
microsoft / windows rt
microsoft / windows rt 8.1
microsoft / windows server 2012
microsoft / windows server 2012
microsoft / windows server 2012
microsoft / windows server 2012

References

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-101

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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