CVE-2005-3378: norman norman_virus_control
Vulnerability summary
CVE-2005-3378 is a medium (CVSS 5.1) vulnerability in norman norman_virus_control. EPSS estimates a 2.35% chance of exploitation in the next 30 days, higher than 83.4% of scored vulnerabilities.
Timeline
- 29-10-2005PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
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."
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.35%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.35% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Norman1 product
- norman_virus_control5.81_engine_5.83.02
1 vendor · 1 product
References
5 links- www.securityelf.org/magicbyte.htmlX Refsource MISC
- www.securityelf.org/updmagic.htmlX Refsource MISC