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Vulnerability record · CVE-2011-0033 · published 10 February 2011

CVE-2011-0033: Microsoft windows 2003 server improper input validation vulnerability

Microsoft · Windows 2003 Server

The OpenType Compact Font Format (CFF) driver in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate parameter values in OpenType fonts, which allows remote attackers to execute arbitrary code via a crafted font, aka "OpenType Font Encoded Character Vulnerability."

9.3 CVSS 2.0 High EPSS 21% · top 2.5% CWE-20 · Improper input validation
9.3CVSS 2.0 base score
21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
18References
16 Jun 2026Last modified by NVD

Description

The OpenType Compact Font Format (CFF) driver in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate parameter values in OpenType fonts, which allows remote attackers to execute arbitrary code via a crafted font, aka "OpenType Font Encoded Character Vulnerability."

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

Affected products

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

References

LinkTags
http://osvdb.org/70821
http://secunia.com/advisories/43252 Vendor Advisory
http://support.avaya.com/css/P8/documents/100127239
http://www.securityfocus.com/bid/46106
http://www.securitytracker.com/id?1025034
http://www.vupen.com/english/advisories/2011/0320 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-007
https://exchange.xforce.ibmcloud.com/vulnerabilities/64906
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11593
http://osvdb.org/70821
http://secunia.com/advisories/43252 Vendor Advisory
http://support.avaya.com/css/P8/documents/100127239
http://www.securityfocus.com/bid/46106
http://www.securitytracker.com/id?1025034
http://www.vupen.com/english/advisories/2011/0320 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-007
https://exchange.xforce.ibmcloud.com/vulnerabilities/64906
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11593

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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-2011-0033), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.