Multiple interpretation error in Ukrainian National Antivirus (UNA) 1.83.2.16 with kernel…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Multiple interpretation error in Ukrainian National Antivirus (UNA) 1.83.2.16 with kernel 265 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
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:ukranian_national_antivirus:una:1.83.2.16:*:*:*:*:*:*:* | 1.83.2.16 | Vulnerable | Ukranian National Antivirus |
- cpe:2.3:a:ukranian_national_antivirus:una:1.83.2.16:*:*:*:*:*:*:* Versions 1.83.2.16 Vulnerable ·Ukranian National Antivirus
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-3381
- 2026-10-03 Alias added: GHSA-xghf-rq5q-xgj7
References
Sources
- CVE-2005-3381 · CVE Program
- CVE-2005-3381 · NVD
- FIRST EPSS
- GHSA-xghf-rq5q-xgj7 · GitHub Advisory Database · CC BY 4.0
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