CVE-2021-36169
mediumpriority · track · 24OT risk · elevatedEPSS 0.003 · 17 %ileEURUUSEPSS · scored 2026-10-24
A Hidden Functionality in Fortinet FortiOS 7.x before 7.0.1, FortiOS 6.4.x before 6.4.7 allows attacker to Execute unauthorized code or commands via specific hex read/write operations.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (11)
Products and version ranges known to be affected.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://fortiguard.com/advisory/FG-IR-21-091cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-36169cnnvd
- https://vigilance.fr/vulnerability/FortiOS-code-execution-via-Debug-Commands-36339cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.3004cnnvd
- https://www.fortinet.com/Patchcnnvd
- https://fortiguard.com/advisory/FG-IR-21-091enisa_euvd
- https://fortiguard.com/advisory/FG-IR-21-091Vendor Advisorynvd
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