Home/CVE/An Insecure Temporary File vulnerability in FortiClient for Windows 6.2.1 and below may allow a local user to gain eleva
CVE

CVE-2020-9291

An Insecure Temporary File vulnerability in FortiClient for Windows 6.2.1 and below may allow a local user to gain eleva

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.

MEDIUM · CVSS 6.3 EPSS 0.00115
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-668Exposure of Resource to Wrong Sphere
▤

Affected Products & Versions

2
fortinet forticlient<= 6.0.9
fortinet forticlient>= 6.2.0 and <= 6.2.1
▣

Scoring & Timeline

6.3
MEDIUM · CVSS v3.1 · psirt@fortinet.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Jun 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://fortiguard.com/psirt/FG-IR-20-040Broken Link
https://www.fortiguard.com/psirt/FG-IR-20-040Vendor Advisory
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