TI-2011-01088 Aliases CVE-2011-1243 GHSA-r5g4-c3vm-vwhj

The Windows Messenger ActiveX control in msgsc.dll in Microsoft Windows XP SP2 and SP3…

MEDIUM 63CWE-119Published 2011-04-13 · Updated 2024-08-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Medium
Impact type: Code execution
Confidentiality · integrity · availability: Complete · Complete · Complete
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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."

Why it matters now

EPSS 0.29323 98th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:microsoft:windows_xp::sp3::::::*	all versions	Vulnerable	Microsoft
cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:::::*	not specified by NVD	Vulnerable	Microsoft

cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2011-1243
2026-10-03 Alias added: GHSA-r5g4-c3vm-vwhj

References

Advisory 1

MS11-027

Other 2

TI-2008-04072 The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and… KEVCVSS 3.1CRITICAL 9.8
TI-2013-03421 The InformationCardSigninHelper Class ActiveX control in icardie.dll in Microsoft Windows… KEVCVSS 3.1HIGH 8.8
TI-2011-03009 Unspecified vulnerability in the TrueType font parsing engine in win32k.sys in the… KEVCVSS 3.1HIGH 8.8
TI-2009-01458 Unspecified vulnerability in the QuickTime Movie Parser Filter in quartz.dll in… KEVCVSS 3.1HIGH 8.8
TI-2008-00014 Stack-based buffer overflow in the CComVariant::ReadFromStream function in the Active… KEVCVSS 3.1HIGH 8.8
TI-2013-04422 NDProxy.sys in the kernel in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 allows… KEVCVSS 3.1HIGH 7.8

See all 737 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences