5.1

CVE-2005-3378: norman norman_virus_control

CVSS: 5.1v2.0MediumModified
Published 29-10-2005Last modified 07-08-2024

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.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.1/10
010
Medium · v2.0 (NVD)
EPSS score
2.35%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-10-2005
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last 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 version

EPSS 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

19-09-202619-10-2026
EPSS score
2.35%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Norman1 product

1 vendor · 1 product

References

5 links