What’s Vulnerable › Vulnerabilities

CVE-2011-1243

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 29.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-04-13 · updated 2026-06-16
• Weakness: CWE-119

Description

The Windows Messenger ActiveX control in msgsc.dll in Microsoft Windows XP SP2 and SP3 allows remote attackers to execute arbitrary code via unspecified vectors that "corrupt the system state," aka "Microsoft Windows Messenger ActiveX Control Vulnerability."

Affected products

• Microsoft Windows XP Service Pack 3: all versions

References

• http://osvdb.org/71788
• http://secunia.com/advisories/44159
• http://www.securityfocus.com/bid/47197
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-027
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12524
• http://osvdb.org/71788
• http://secunia.com/advisories/44159
• http://www.securityfocus.com/bid/47197
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-027
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12524

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