CVE-2009-0231

Name: CVE-2009-0231
Creator: NVD / NIST
Published: 2009-07-15T15:30:01.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 37.45%

Last modified Jun 16, 2026

CVE-2009-0231 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The Embedded OpenType (EOT) Font Engine (T2EMBED.DLL) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allows remote attackers to execute arbitrary code via a crafted name table in a data record that triggers an integer truncation and a heap-based buffer overflow, aka "Embedded OpenType Font Heap Overflow Vulnerability.". EPSS estimates a 37.45% chance of exploitation in the next 30 days.

Description

The Embedded OpenType (EOT) Font Engine (T2EMBED.DLL) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allows remote attackers to execute arbitrary code via a crafted name table in a data record that triggers an integer truncation and a heap-based buffer overflow, aka "Embedded OpenType Font Heap Overflow Vulnerability."

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

37.45%

98.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-681

Affected Software

Vendor	Product	Versions	Update
Microsoft	Windows 2000	All versions	Sp4
Microsoft	Windows Server 2003	All versions	Sp2
Microsoft	Windows Server 2008	All versions	—
Microsoft	Windows Vista	All versions	—
Microsoft	Windows Xp	All versions	Sp2

References

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=811Broken Link
http://osvdb.org/55842Broken Link
http://www.securitytracker.com/id?1022543Broken Link, Third Party Advisory, VDB Entry
http://www.us-cert.gov/cas/techalerts/TA09-195A.htmlThird Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2009/1887Broken Link, Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-029Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5457Broken Link
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=811Broken Link
http://osvdb.org/55842Broken Link
http://www.securitytracker.com/id?1022543Broken Link, Third Party Advisory, VDB Entry
http://www.us-cert.gov/cas/techalerts/TA09-195A.htmlThird Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2009/1887Broken Link, Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-029Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5457Broken Link

Timeline

Published: Jul 15, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-0231?

How severe is CVE-2009-0231?

CVE-2009-0231 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 37.45% probability of exploitation in the next 30 days.

How do I fix CVE-2009-0231?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-0231?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST