Exposure of resource to wrong sphere in Fortinet FortiClient for Windows
Priority LOW 35CWE-668Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An Insecure Temporary File vulnerability in FortiClient for Windows 6.2.1 and below may allow a local user to gain elevated privileges via exhausting the pool of temporary file names combined with a symbolic link attack.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00528 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 | Fortinet FortiClient for Windows | FortiClient for Windows 6.2.1 and earlier and FortiClient for Windows 6.0.9 and earlier | — | No fix listed | CNA |
- Fortinet FortiClient for Windows VendorFortinet Affected FortiClient for Windows 6.2.1 and earlier and FortiClient for Windows 6.0.9 and earlier Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9291
- 2026-10-03 Alias added: GHSA-qrcx-r22r-r6xm
References
More Fortinet Forticlient vulnerabilities
- TI-2019-13180 An unquoted service path vulnerability in the FortiClient FortiTray component of… CVSS 3.1CRITICAL 9.8
- TI-2023-24393 Code injection in Fortinet FortiClientLinux CVSS 3.1CRITICAL 9.4
- TI-2017-10335 Information disclosure in Fortinet FortiClient for Windows CVSS 3.0HIGH 8.8
- TI-2016-06998 In FortiClientWindows 5.4.1 and 5.4.2, an attacker may escalate privilege via a FortiClientNamedPipe vulnerability. CVSS 3.0HIGH 8.8
- TI-2019-03954 Untrusted search path in Fortinet FortiClientWindows CVSS 3.1HIGH 8.6
- TI-2017-05007 A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0… CVSS 3.0HIGH 8.1
Sources
- CVE-2020-9291 · CVE Program
- CVE-2020-9291 · NVD
- FIRST EPSS
- GHSA-qrcx-r22r-r6xm · GitHub Advisory Database · CC BY 4.0
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