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Vulnerability record · CVE-2011-1873 · published 16 June 2011

CVE-2011-1873: Microsoft windows 7 improper input validation vulnerability

Microsoft · Windows 7

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 on 64-bit platforms does not properly validate pointers during the parsing of OpenType (aka OTF) fonts, which allows remote attackers to execute arbitrary code via a crafted font file, aka "Win32k OTF Validation Vulnerability."

9.3 CVSS 2.0 High EPSS 19% · top 2.8% CWE-20 · Improper input validation
9.3CVSS 2.0 base score
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 on 64-bit platforms does not properly validate pointers during the parsing of OpenType (aka OTF) fonts, which allows remote attackers to execute arbitrary code via a crafted font file, aka "Win32k OTF Validation Vulnerability."

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/44893
http://www.securityfocus.com/bid/48183
http://www.securitytracker.com/id?1025638
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-041
https://exchange.xforce.ibmcloud.com/vulnerabilities/67732
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12725
http://secunia.com/advisories/44893
http://www.securityfocus.com/bid/48183
http://www.securitytracker.com/id?1025638
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-041
https://exchange.xforce.ibmcloud.com/vulnerabilities/67732
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12725

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-1873), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.