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CVE-2005-3375

Multiple interpretation error in Ikarus demo version allows remote attackers to bypass virus...

5.1 Medium

CVE-2005-3375 is a medium vulnerability (CVSS 5.1) in Ikarus Antivirus, published October 29, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.56%, the 75th percentile. No source names a fixed version.

What does this mean?
Severity
5.1 MediumCVSS 2.0, NVD
Exploit chance
1.56%EPSS, 75th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Multiple interpretation error in Ikarus demo version 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."

Exploit likelihood

1.56%Up 0.3 points since Feb 4, 2022
90%50%10%1%

Affected products

What each source reports

NVD Score used5.1

Multiple interpretation error in Ikarus demo version 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."

Record
CVE-2005-3375
CVSS 2.0
5.1 MediumAV:N/AC:H/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE ListNo score

Multiple interpretation error in Ikarus demo version 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."

Record
CVE-2005-3375
Updated
2026-11-02
EUVDEUVD-2005-3374No score

Multiple interpretation error in Ikarus demo version 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."

Record
EUVD-2005-3374
Updated
2026-11-03
GitHub AdvisoriesGHSA-fj58-h7cr-69rmNo score

Multiple interpretation error in Ikarus demo version allows remote attackers to bypass virus...

Multiple interpretation error in Ikarus demo version 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."

Record
GHSA-fj58-h7cr-69rm
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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