FortiOS 6.2 running AV engine version 6.00142 and below, FortiOS 6.4 running AV engine…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
FortiOS 6.2 running AV engine version 6.00142 and below, FortiOS 6.4 running AV engine version 6.00144 and below and FortiClient 6.2 running AV engine version 6.00137 and below may not immediately detect certain types of malformed or non-standard RAR archives, potentially containing malicious files. Based on the samples provided, FortiClient will detect the malicious files upon trying extraction by real-time scanning and FortiGate will detect the malicious archive if Virus Outbreak Prevention is enabled.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fortinet | FortiClientWindows | 6.2.0 – 6.2.6; 6.0.0 – 6.0.10 | — | No fix listed | CNA |
- FortiClientWindows VendorFortinet Affected 6.2.0 – 6.2.6; 6.0.0 – 6.0.10 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9295
- 2026-10-03 Alias added: GHSA-mf6m-3qv8-qp4q
References
More Fortinet Antivirus Engine vulnerabilities
- TI-2022-09586 Insufficient verification of data authenticity in Fortinet AV Engine, FortiMail, FortiOS… CVSS 3.1HIGH 8.6
Sources
- CVE-2020-9295 · CVE Program
- CVE-2020-9295 · NVD
- FIRST EPSS
- GHSA-mf6m-3qv8-qp4q · 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