Fortinet PSIRT Monthly Advisories — September 2026
Tuesday, 8 September 2026
- Vulnerabilities
- 9
- Critical
- 0
- High
- 2
- Zero-days
- 0
- Public exploit
- 0
Exploited 0
Confirmed exploited (CISA KEV, ENISA). "Zero-day" means exploitation was known by the patch day — install these first.
None of this release's vulnerabilities is known to be exploited so far.
All vulnerabilities 9
High2 ShowHide
- High 8.9
- High 7.3
Medium5 ShowHide
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Medium 6.7
CVE-2026-84387 An Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability [CWE-77] vulnerability in Fortinet FortiSandbox 5.2.0, For…EPSS 1.6%
- Medium 5.9
- Medium 4.9
- Medium 4.7
- Medium 4.7