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
- 99.7th percentile (score 0.846, as of
2026-11-06) - NVD CVSS v3.1
- 9.8 (CRITICAL)
- 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.
NVD description
A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiOS 6.0 all versions, FortiProxy 7.4.0 through 7.4.2, FortiProxy 7.2.0 through 7.2.8, FortiProxy 7.0.0 through 7.0.14, FortiProxy 2.0.0 through 2.0.13, FortiProxy 01.02 all versions, FortiProxy 1.2 all versions, FortiProxy 01.01 all versions, FortiProxy 1.1 all versions, FortiProxy 01.00 all versions allows attacker to execute unauthorized code or commands via specifically crafted requests