ZTNA Portal Improper Certificate Validation

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PT-2026-87183

New security alarm: Fortinet’s Agentless ZTNA has a certificate‐validation flaw CVE-2026-84393 letting attackers perform MITM on FortiOS and FortiProxy. Versions 7.6.1-7.6.6 are vulnerable; upgrade to 7.6.7 or later. This unauthenticated risk puts exposed portals at serious risk—patch now if you...

The vulnerability of the WAD (Web Access Daemon) in FortiOS operating systems allows a hacker to execute arbitrary code.

The vulnerability of WAD Web Access Daemon in FortiOS operating systems is related to buffer overflow in the stack. Exploiting this vulnerability allows a malicious actor to execute arbitrary code using specially created sockets...

Exploit for Authentication Bypass Using an Alternate Path or Channel in Fortinet Fortiproxy

CVE-2024-55591 - Fortinet FortiOS Authentication Bypass An ed...

Exploit for Numeric Truncation Error in Fortinet Fortios

CVE-2022-42475 PoC Fortinet SSL VPN Pre-Authentication Remo...

Fortinet Fortigate UI DoS attack (FG-IR-26-162)

The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-26-162 advisory. - A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 a...

CVE-2026-71407

A Stack-based Buffer Overflow vulnerability CWE-121 vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit...

CVE-2026-71408

A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 all versions, FortiOS 7.2 all versions may allow attacker to denial of service via...

CVE-2026-71407

CVE-2026-71407 is a stack-based buffer overflow (CWE-121) in the WAD daemon of Fortinet FortiOS 7.6.1 through 7.6.6 . An unauthenticated attacker who can bypass stack protection and ASLR may execute arbitrary code or commands via crafted sockets, but only if the explicit proxy is configured with ...

EUVD-2026-57191

A Stack-based Buffer Overflow vulnerability CWE-121 vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit...

CVE-2026-71407

A Stack-based Buffer Overflow vulnerability CWE-121 vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit...

CVE-2026-71407

A Stack-based Buffer Overflow vulnerability CWE-121 vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit...

CVE-2026-71407

A Stack-based Buffer Overflow vulnerability CWE-121 vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit...

EUVD-2026-57189

A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 all versions, FortiOS 7.2 all versions may allow attacker to denial of service via...

CVE-2026-71408

CVE-2026-71408 affects Fortinet FortiOS across multiple lines: FortiOS 7.6.0–7.6.6, FortiOS 7.4 (all versions), and FortiOS 7.2 (all versions) with a resource allocation vulnerability leading to denial of service. The root cause is unbounded resource allocation, enabling network-based exploitatio...

CVE-2026-71408

A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 all versions, FortiOS 7.2 all versions may allow attacker to denial of service via...

CVE-2026-71408

A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 all versions, FortiOS 7.2 all versions may allow attacker to denial of service via...

CVE-2026-71408

A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 all versions, FortiOS 7.2 all versions may allow attacker to denial of service via...

PT-2026-71065

Name of the Vulnerable Software and Affected Versions Fortinet FortiOS versions 7.6.1 through 7.6.6 Description A stack-based buffer overflow occurs in the WAD daemon when the explicit proxy is configured with Kerberos authentication and SOCKS enabled. An unauthenticated attacker can exploit this...

CVE-2026-71407: Stack-based Buffer Overflow

A Stack-based Buffer Overflow vulnerability CWE-121 vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit...