February 9, 2024 · Applied Cybernetics Group
CVE-2024-21762 — Fortinet FortiOS
known ransomware use
Fortinet FortiOS Out-of-Bound Write Vulnerability
- Added to KEV
2024-02-09- Federal due date
2024-02-16- Vendor
- Fortinet
- Product
- FortiOS
- EPSS
- 99.6th percentile (score 0.834, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- ATT&CK
- T1190 , T1547.009 , T1574 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2024-21762
CISA short description
Fortinet FortiOS contains an out-of-bound write vulnerability that allows a remote unauthenticated attacker to execute code or commands via specially crafted HTTP requests.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.