Vulnerability Monitor

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CVE-2011-1873

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."

Security Impact Summary

CVE-2011-1873 is a security vulnerability that . Impacting 5 products from microsoft, from microsoft, from microsoft and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2011-06-16T20:55:02.510

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 9.3 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	microsoft	windows_7	-	Yes
Operating System	microsoft	windows_7	-	Yes
Operating System	microsoft	windows_server_2003	*	Yes
Operating System	microsoft	windows_server_2008	*	Yes
Operating System	microsoft	windows_server_2008	-	Yes
Operating System	microsoft	windows_server_2008	r2	Yes
Operating System	microsoft	windows_server_2008	r2	Yes
Operating System	microsoft	windows_vista	*	Yes
Operating System	microsoft	windows_vista	*	Yes
Operating System	microsoft	windows_xp	-	Yes

References

http://secunia.com/advisories/44893 ([email protected])
http://www.securityfocus.com/bid/48183 ([email protected])
http://www.securitytracker.com/id?1025638 ([email protected])
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-041 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/67732 ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12725 ([email protected])
http://secunia.com/advisories/44893 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/48183 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1025638 (af854a3a-2127-422b-91ae-364da2661108)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-041 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/67732 (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12725 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.