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Case File

CVE-2005-3381

MEDIUM · CVSS 5 EPSS 2.13%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2005-10-30 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.0. It may be remotely exploitable.

CVE
CVE-2005-3381
Severity
MEDIUM
CVSS
5
EPSS
2.13%

Original NVD Description

Multiple interpretation error in Ukrainian National Antivirus (UNA) 1.83.2.16 with kernel 265 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."