TI-2009-00623 Aliases CVE-2009-0647 GHSA-vgwx-7mjc-5w5g

msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other…

MEDIUM 40CWE-20Published 2009-02-19 · Updated 2024-08-07

Key facts

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

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other 14.0.8064.x builds, allows remote attackers to cause a denial of service (application crash) via a modified header in a packet, as possibly demonstrated by a UTF-8.0 value of the charset field in the Content-Type header line. NOTE: this has been reported as a format string vulnerability by some sources, but the provenance of that information is unknown.

Why it matters now

EPSS 0.17365 97th 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 · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:windows_live_messenger:2009:::::::*	2009	Vulnerable	Microsoft

cpe:2.3:a:microsoft:windows_live_messenger:2009:*:*:*:*:*:*:* Versions 2009 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2009-0647
2026-10-03 Alias added: GHSA-vgwx-7mjc-5w5g

References

Advisory 1

ADV-2009-0466

TI-2007-02837 Heap-based buffer overflow in Microsoft MSN Messenger 6.2, 7.0, and 7.5, and Live… CVSS 2.0HIGH 9.3
TI-2008-04930 Unspecified vulnerability in Microsoft Office Communications Server (OCS), Office… CVSS 2.0MEDIUM 5.0
TI-2008-05534 Microsoft Windows Live Messenger Client 8.5.1 and earlier, when MSN Protocol Version 15… CVSS 2.0MEDIUM 5.0
TI-2007-04955 Buffer overflow in the GDI engine in Windows Live Messenger, as used for Windows MSN Live… CVSS 2.0MEDIUM 4.3
TI-2006-06016 Microsoft Windows Live Messenger 8.0 and earlier, when gestual emoticons are enabled… CVSS 2.0MEDIUM 4.3
TI-2006-03149 Heap-based buffer overflow in Windows Live Messenger 8.0 allows user-assisted attackers… CVSS 2.0MEDIUM 5.1

See all 7 →

Sources

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