CVE-2025-25249

published 2026-01-13

CVE-2025-25249: A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0…

Priority P3 57 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows attacker to execute unauthorized code or commands via specially crafted packets

Affected

17 ranges

Vendor	Product	Version range	Fixed in
fortinet	fortinet	—	—
fortinet	fortios	—	—
fortinet	fortios	>= 6.4.0 < 6.4.17	6.4.17
fortinet	fortios	>= 7.0.0 < 7.0.18	7.0.18
fortinet	fortios	>= 7.2.0 < 7.2.12	7.2.12
fortinet	fortios	7.2.4 – 7.2.11	—
fortinet	fortios	>= 7.4.0 < 7.4.9	7.4.9
fortinet	fortios	7.4.0 – 7.4.7	—
fortinet	fortios	>= 7.6.0 < 7.6.4	7.6.4
fortinet	fortios	7.6.0 – 7.6.2	—
fortinet	fortisase	—	—
fortinet	fortisase	—	—
fortinet	fortisase	—	—
fortinet	fortiswitchmanager	—	—
fortinet	fortiswitchmanager	>= 7.0.0 < 7.0.6	7.0.6
fortinet	fortiswitchmanager	>= 7.2.0 < 7.2.7	7.2.7
fortinet	fortiswitchmanager	7.2.2 – 7.2.5	—

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CWE-122 CWE-787