An unspecified Microsoft WMF parsing application as used in Internet Explorer 5.01 SP4 on Windows 2000 SP4 and 5.5 SP2 on Windows Millennium and possibly other versions allows attackers to cause a denial of service (crash) and possibly execute code via a crafted WMF file with a manipulated WMF header size possibly involving an integer overflow a different vulnerability than CVE-2005-4560 and aka \WMF Image Parsing Memory Corruption Vulnerability.\