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Case File

CVE-2009-0647

MEDIUM · CVSS 5 EPSS 17.36%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-02-19 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.0. It affects Windows. Its EPSS score suggests a 17.4% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2009-0647
Severity
MEDIUM
CVSS
5
EPSS
17.36%
Windows

Original NVD Description

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.