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Unrated severityNVD Advisory· Published Oct 30, 2005· Updated Jun 16, 2026

CVE-2005-3378

CVE-2005-3378

Description

Multiple interpretation error in Norman 5.81 with the 5.83.02 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."

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Norman/Norman Virus Control2 versions
    cpe:2.3:a:norman:norman_virus_control:5.81_engine_5.83.02:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:norman:norman_virus_control:5.81_engine_5.83.02:*:*:*:*:*:*:*
    • (no CPE)range: 5.81 (engine 5.83.02)

Patches

Vulnerability mechanics

References

5

News mentions

0

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