CISA-confirmed known exploited vulnerability

CVE-2024-21762

Fortinet FortiOS Out-of-Bound Write Vulnerability

Fortinet · FortiOS

Vulnerability details

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.

Added to CISA KEV: 2024-02-09

Ransomware campaign use: Known

CISA due date: 2024-02-16

Defensive guidance from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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