CVE-2024-21762Vulnerability
Fortinet FortiOS Out-of-Bound Write Vulnerability
Exploited in the wildCISA added it to its Known Exploited Vulnerabilities list on .
Reported by 3 independent sources · first reported by GreyNoise · last reported
Last reported 12 days ago
CISA KEVAdded 9 Feb 2024
Fix due 16 Feb 2024
Used by ransomware: knownCISA KEV catalogue
Fix due 16 Feb 2024
Used by ransomware: knownCISA KEV catalogue
EPSS83.4%
higher than 99% of CVEsFIRST EPSS, as of 23 Oct 2026
higher than 99% of CVEsFIRST EPSS, as of 23 Oct 2026
What the reports say
4 reports, newest first · the exact sentence from each-
September 2026 CVE Landscape“CVE-2024-21762”
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Ransomware in 2026: Same Business, New Rules“Entry typically comes through Fortinet edge devices exploiting CVE-2024-21762 and CVE-2024-55591.”
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June 2026 CVE Landscape“CVE-2024-21762”
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GreyNoise Detects Active Exploitation of CVEs Mentioned in Black Basta’s Leaked Chat Logs“CVE-2024-21762”
Indicators reported together
named in the same reportsAlso named with it: CVE-2026-35273, CVE-2022-27925, CVE-2026-34908, CVE-2026-34909, CVE-2026-34910, CVE-2021-26855, CVE-2023-20198, CVE-2016-4437, CVE-2022-41082, CVE-2021-44228, CVE-2022-22965, CVE-2026-60004, CVE-2026-25089, CVE-2026-39808, CVE-2026-11645, CVE-2026-28318, CVE-2026-20230, CVE-2026-35616, CVE-2026-33825, CVE-2025-55182
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