CVE-2011-1243

high

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."

References

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12524

https://euvd.enisa.europa.eu/vulnerability/EUVD-2011-1251

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-027

http://www.securityfocus.com/bid/47197

http://secunia.com/advisories/44159

http://osvdb.org/71788

Details

Source: Mitre, NVD

Published: 2011-04-13

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.29323