Fortinet Fortigate ZTNA Portal Improper Certificate Validation (FG-IR-26-174)

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-26-174 advisory. - A improper validation of certificate with host mismatch vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6, FortiProxy...

Exploit for Out-of-bounds Write in Fortinet Fortiproxy

FortiGate SSL-VPN kit recovered in the wild Research arch...

Improper Input Validation

Graylog is vulnerable to Improper Input Validation. The vulnerability is due to improper parsing of field-like text and escaped quotes within quoted FortiGate syslog values, which allows an unauthenticated network attacker to manipulate or overwrite security-log fields or cause messages to be...

CVE-2026-55841

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

Fortigate syslog message parser can be exploited to modify or delete fields from the original message

Impact A security issue has been identified in Graylog affecting the parsing of syslog messages that use a key-value format, such as those generated by Fortigate devices. The vulnerability allows attackers to overwrite individual message fields, or to produce invalid messages which Graylog will...

GHSA-GQR6-R77P-C2PJ Fortigate syslog message parser can be exploited to modify or delete fields from the original message

Impact A security issue has been identified in Graylog affecting the parsing of syslog messages that use a key-value format, such as those generated by Fortigate devices. The vulnerability allows attackers to overwrite individual message fields, or to produce invalid messages which Graylog will...

Improper Neutralization of Special Elements

Overview org.graylog2:graylog2-server is a log management platform. Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in its syslog key-value message parser, which handles the key-value format emitted by Fortigate devices. An attacker can overwrite...

CVE-2026-55841 Graylog: Fortigate syslog message parser can be exploited to modify or delete fields from the original message

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

CVE-2026-55841

Graylog (a free and open log management platform) is affected by a parsing flaw in its FortiGate key-value syslog parser (GLFortiGateSyslogEvent.java and SyslogCodec.java). The root cause is that KV_PATTERN and QUOTED_KV_PATTERN mishandle field-like text inside quoted values: crafted values conta...

CVE-2026-55841 Graylog: Fortigate syslog message parser can be exploited to modify or delete fields from the original message

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

CVE-2026-55841

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

EUVD-2026-68013

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

CVE-2026-55841 Graylog: Fortigate syslog message parser can be exploited to modify or delete fields from the original message

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

vamp-forticheck

vamp-forticheck VampSecure Labs — Security Research Division Scanner di vulnerabilità critiche nei dispositivi FortiOS/FortiGate. Descrizione Strumento di audit di sicurezza per valutare l'esposizione dei dispositivi Fortinet rispetto a quattro vulnerabilità critiche pubblicamente documentate...

PT-2026-83347

Name of the Vulnerable Software and Affected Versions Graylog Server versions prior to 6.3.12 Graylog Server versions prior to 7.0.7 Graylog Server versions prior to 7.1.2 Graylog Forwarder versions prior to 7.3 Description The FortiGate key-value syslog parser mishandles field-like text inside...

FortiGate OS - SSH Backdoor (Fortimanager_Access)

Authenticates to FortiGate OS 4.x through 5.0.7 using the hard-coded FortimanagerAccess account and interactive SSH challenge response. !/usr/bin/env python3 -- coding: utf-8 -- """FortiGate OS 4.x–5.0.7 SSH backdoor FortimanagerAccess.""" from future import annotations import base64 import hashl...

FGFM Authentication Weakening via CLI Configuration

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Fortinet FGFM protocol - Detect

FortiGate to FortiManager Protocol FGFM was detected. !/usr/bin/env python3 -- coding: utf-8 -- """FortiGate to FortiManager Protocol FGFM was detected.""" import socket from kittysploit import from lib.protocols.tcp.tcpscannerclient import Tcpscannerclient class ModuleScanner, Tcpscannerclient:...

FortiGate FortiOS SSL VPN Web Portal - Cross-Site Scripting Detection

FortiGate FortiOS through SSL VPN Web Portal contains a cross-site scripting vulnerability. The login redir parameter is not sanitized, so an attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal...

Fortinet Fortigate xss (FG-IR-26-150)

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-26-150 advisory. - An Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability CWE-79 vulnerability in...