HOMEVULNERABILITIESCVE-2009-0231
HIGH

CVE-2009-0231

CWE-681Published: July 15, 2009· Updated: Jun 16, 2026

8.8
CVSS v3.1

Official 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."

NVD Source

Technical Analysis

CVE-2009-0231 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

Microsoft5 product(s)
windows 2000windows server 2003windows server 2008windows vistawindows xp
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-029
PATCHhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-029
ADVISORYhttp://www.securitytracker.com/id?1022543
ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA09-195A.html
ADVISORYhttp://www.vupen.com/english/advisories/2009/1887
ADVISORYhttp://www.securitytracker.com/id?1022543
ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA09-195A.html
ADVISORYhttp://www.vupen.com/english/advisories/2009/1887

All References (14)

→
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

Quick Facts

CVE IDCVE-2009-0231
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-681
CISA KEVNo
Affected1 vendor(s)
PublishedJul 15, 2009

Related CVEs (CWE-681)

CVE-2021-38187
9.8
CVE-2019-14842
9.8
CVE-2016-3074
9.8
CVE-2021-36357
9.8
CVE-2022-40138
9.8
CVE-2019-19317
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2009-0231 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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