CVE-2011-1243

Name: CVE-2011-1243
Creator: NVD / NIST
Published: 2011-04-13T18:55:01.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 29.32%

Last modified Jun 16, 2026

CVE-2011-1243 is a vulnerability of currently unknown severity. 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.". EPSS estimates a 29.32% chance of exploitation in the next 30 days.

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."

Metrics

EPSS Probability

29.32%

97.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions	Update
Microsoft	Windows Xp	All versions	Sp3

References

Timeline

Published: Apr 13, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-1243?

How severe is CVE-2011-1243?

Severity scoring for CVE-2011-1243 is pending analysis. The EPSS model estimates a 29.32% probability of exploitation in the next 30 days.

How do I fix CVE-2011-1243?

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-2011-1243?

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

Scan your code now

Source: NVD / NIST