Multiple interpretation error in F-Prot 3.16c allows remote attackers to bypass virus…
Priority LOW 26Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Multiple interpretation error in F-Prot 3.16c 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."
Why it matters now
EPSS 0.01352 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:frisk_software:f-prot_antivirus:3.16c:*:*:*:*:*:*:* | 3.16c | Vulnerable | Frisk Software |
- cpe:2.3:a:frisk_software:f-prot_antivirus:3.16c:*:*:*:*:*:*:* Versions 3.16c Vulnerable ·Frisk Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-3374
- 2026-10-03 Alias added: GHSA-77gg-j5r4-j69x
References
More Frisk Software F-prot Antivirus vulnerabilities
- TI-2005-03322 Frisk F-Prot Antivirus allows remote attackers to bypass protection via a ZIP file with a… CVSS 2.0HIGH 7.5
- TI-2006-06058 Multiple unspecified vulnerabilities in FRISK Software F-Prot Antivirus before 4.6.7 have… CVSS 2.0HIGH 7.5
- TI-2006-06101 FRISK Software F-Prot Antivirus before 4.6.7 allows user-assisted remote attackers to… CVSS 2.0MEDIUM 5.0
- TI-2005-03039 Multiple interpretation error in unspecified versions of F-Prot Antivirus allows remote… CVSS 2.0MEDIUM 5.1
Sources
- CVE-2005-3374 · CVE Program
- CVE-2005-3374 · NVD
- FIRST EPSS
- GHSA-77gg-j5r4-j69x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences