VULNERABILITY INTELLIGENCE

CVE-2005-3379

CVSS score5.1 MEDIUM
EPSS probability1.45%
CISA KEVNot currently listed
Published2005-10-30
Last modified2026-06-16
CVSS vectorAV:N/AC:H/Au:N/C:P/I:P/A:P

Description

Multiple interpretation error in Trend Micro (1) PC-Cillin 2005 12.0.1244 with the 7.510.1002 engine and (2) OfficeScan 7.0 with the 7.510.1002 engine allows remote attackers to bypass virus scanning via a file such as BAT, HTML, and EML with an "MZ" magic byte sequence which is normally associated with EXE, which causes the file to be treated as a safe type that could still be executed as a dangerous file type by applications on the end system, as demonstrated by a "triple headed" program that contains EXE, EML, and HTML content, aka the "magic byte bug."

Primary references