CVE-2005-3370

CVE-2005-3370 is a medium-severity vulnerability in Arcavir Arcavir 2005 with a CVSS 2.0 base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Multiple interpretation error in ArcaVir 2005 package 2005-06-21 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."

Frequently asked questions

What is CVE-2005-3370?
Multiple interpretation error in ArcaVir 2005 package 2005-06-21 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."
How severe is CVE-2005-3370?
CVE-2005-3370 has a CVSS 2.0 base score of 5.1, rated medium severity.
Is CVE-2005-3370 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-3370?
CVE-2005-3370 affects Arcavir Arcavir 2005. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-3370?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-3370 published?
CVE-2005-3370 was published on 2005-10-30 and last updated on 2026-06-16.

References

Affected products (1)