CVE-2026-84392
LowCVSS 2.7Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
A NULL Pointer Dereference vulnerability (CWE-476) in Fortinet FortiOS 7.4 and 7.2 (all versions), FortiPAM (multiple versions), and FortiProxy 7.6.0-7.6.6, 7.4, and 7.2 (all versions) may allow an authenticated attacker to crash the httpsd daemon via crafted HTTP requests.
Risk Assessment
An attacker can cause denial of service (DoS) by crashing the httpsd daemon, potentially affecting the availability of management interfaces and services. Authentication is required.
Recommendation
Update affected Fortinet products to patched versions. Also, restrict access to management interfaces and monitor logs for unusual requests.
Other vulnerabilities in Fortinet FortiOS
See all- CVE-2017-7738High
CVE-2017-7738 is an Information Disclosure vulnerability in Fortinet FortiOS versions 5.6.0 to 5.6.2, 5.4.0 to 5.4.5, and 5.2 and below, allowing an admin user with super_admin privileges to view current SSL VPN web portal session info, which may contain user credentials.
- CVE-2024-23113CriticalActively exploited
A use of externally-controlled format string in Fortinet FortiOS, FortiProxy, FortiPAM, and FortiSwitchManager allows an attacker to execute unauthorized code or commands via specially crafted packets.
- CVE-2024-21762CriticalActively exploited
An out-of-bounds write in Fortinet FortiOS and FortiProxy allows an attacker to execute unauthorized code or commands via specifically crafted requests. Affects multiple versions of FortiOS and FortiProxy.
- CVE-2018-13374MediumActively exploited
An improper access control vulnerability in Fortinet FortiOS and FortiADC allows an attacker to obtain LDAP server login credentials configured in FortiGate by pointing a connectivity test to a rogue LDAP server.
- CVE-2025-67862Medium
Fortinet FortiOS and FortiProxy in multiple versions contain a vulnerability exposing an internal asset to an unsafe debug access level. This allows an authenticated admin to execute Lua scripts via crafted CLI commands.
- CVE-2025-53844High
An out-of-bounds write vulnerability in Fortinet FortiOS versions 7.6.0 through 7.6.3, 7.4.0 through 7.4.8, and 7.2.0 through 7.2.11 allows an attacker to execute unauthorized code or commands via specially crafted packets.
- CVE-2025-58413High
A stack-based buffer overflow vulnerability exists in Fortinet FortiOS versions 7.6.0 through 7.6.3, 7.4.0 through 7.4.8, and all versions of 7.2, 7.0, 6.4, 6.2, and 6.0. An attacker can execute unauthorized code or commands via specially crafted packets.
- CVE-2025-53843High
A stack-based buffer overflow vulnerability exists in Fortinet FortiOS versions 7.6.0 through 7.6.3, 7.4.0 through 7.4.8, and all versions of 7.2, 7.0, and 6.4. An attacker can exploit this vulnerability to execute unauthorized code or commands via specially crafted packets.
- CVE-2025-58903Low
CVE-2025-58903 in Fortinet FortiOS versions 7.6.0 through 7.6.3 and before 7.4.8 has an Unchecked Return Value vulnerability that allows an authenticated user to cause a Null Pointer Dereference, crashing the http daemon via a specially crafted request.
- CVE-2024-52963Low
An out-of-bounds write in Fortinet FortiOS versions 7.6.0, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.0 through 7.0.16, and 6.4.0 through 6.4.15 allows an attacker to trigger a denial of service via specially crafted packets.
Original NVD description (English source)
A NULL Pointer Dereference vulnerability [CWE-476] vulnerability in Fortinet FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiPAM 1.9.0, FortiPAM 1.8 all versions, FortiPAM 1.7 all versions, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.6.0 through 7.6.6, FortiProxy 7.4 all versions, FortiProxy 7.2 all versions may allow an authenticated attacker to crash the httpsd daemon via crafted HTTP requests.