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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,…
Medium5.1EPSS 1.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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."
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.1 | AV:N/AC:H/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.4% · top 28% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.1.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (5)
- 15189 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.securityelf.org/magicbyte.html (opens in a new tab)x_refsource_MISCx_transferred
- http://www.securityelf.org/magicbyteadv.html (opens in a new tab)x_refsource_MISCx_transferred
- 20051025 Multiple Vendor Anti-Virus Software Detection Evasion Vulnerability through (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.securityelf.org/updmagic.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .