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Fortinet FortiOSDouble free in signal handler

Risk 13
Severity
2.3
Double Free
AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

A Double Free vulnerability [CWE-415] in FortiOS, FortiProxy and FortiSwitch may allow a local authenticated attacker to crash the newcli daemon via crafted CLI commands.

1 / 2
Source: FortiGuard
First published (updated )
CVE-2026-106175

Fortinet FortiOSNull Pointer Dereference in Log Report

Risk 16
Severity
2.7
Null Pointer Dereference
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

A NULL Pointer Dereference vulnerability [CWE-476] in FortiOS, FortiProxy and FortiPAM may allow an authenticated attacker to crash the httpsd daemon via crafted HTTP requests.

1 / 2
Source: FortiGuard
First published (updated )
CVE-2026-84392

Fortinet FortiOSOpen Redirect and XSS in Web Filter warning page

Risk 38
Severity
6.1
XSS
AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C

An Improper Neutralization of Input During Web Page Generation and URL Redirection to Untrusted Site vulnerabilities [CWE-79, CWE-601] in FortiOS, FortiProxy and FortiSASE may allow an unauthenticated attacker to perform a reflected cross site scripting (XSS) or an open redirect attack via crafted HTTP requests.

1 / 2
Source: FortiGuard
First published (updated )
CVE-2025-47890

Fortinet FortiOSOpen Redirect and XSS in Web Filter warning page

Risk 38
Severity
6.1
XSS
AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C

An Improper Neutralization of Input During Web Page Generation and URL Redirection to Untrusted Site vulnerabilities [CWE-79, CWE-601] in FortiOS, FortiProxy and FortiSASE may allow an unauthenticated attacker to perform a reflected cross site scripting (XSS) or an open redirect attack via crafted HTTP requests.

1 / 2
Source: FortiGuard
First published (updated )
CVE-2025-31366

Fortinet FortiOSDouble free in signal handler

Risk 13
Severity
2.1
Double Free
AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

A Double Free vulnerability [CWE-415] in FortiOS, FortiProxy and FortiSwitch may allow a local authenticated attacker to crash the newcli daemon via crafted CLI commands.

First published (updated )
Advisory
FG-IR-26-182

Fortinet FortiOSNull Pointer Dereference in Log Report

Risk 15
Severity
2.5
Null Pointer Dereference
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

A NULL Pointer Dereference vulnerability [CWE-476] in FortiOS, FortiProxy and FortiPAM may allow an authenticated attacker to crash the httpsd daemon via crafted HTTP requests.

First published (updated )
Advisory
FG-IR-26-173

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