📦 Fortios

by Fortinet

🔍 What is Fortios?

Description coming soon...

🛡️ Security Overview

Click on a severity to filter vulnerabilities

⚠️ Known Vulnerabilities

CVE-2026-24858

CRITICAL CVSS 9.8 Jan 27, 2026

This authentication bypass vulnerability allows attackers with a FortiCloud account and registered device to log into other organizations' Fortinet devices when FortiCloud SSO authentication is enable...

CVE-2025-22252

CRITICAL CVSS 9.8 May 28, 2025

This vulnerability allows attackers who know an existing admin account name to bypass authentication and gain full administrative access to affected Fortinet devices. It affects FortiProxy, FortiSwitc...

CVE-2023-25610

CRITICAL CVSS 9.8 Mar 24, 2025

This critical vulnerability allows remote unauthenticated attackers to execute arbitrary code or commands on affected Fortinet devices via crafted requests to the administrative interface. It affects ...

CVE-2024-55591

CRITICAL CVSS 9.8 Jan 14, 2025

This vulnerability allows remote attackers to bypass authentication and gain super-admin privileges on affected Fortinet devices by sending crafted requests to the Node.js websocket module. It affects...

CVE-2024-48886

CRITICAL CVSS 9.0 Jan 14, 2025

This vulnerability allows attackers to bypass weak authentication mechanisms in multiple Fortinet products via brute-force attacks, potentially leading to unauthorized command execution. Affected syst...

CVE-2023-42789

CRITICAL CVSS 9.8 Mar 12, 2024

This critical vulnerability allows remote attackers to execute arbitrary code or commands on affected Fortinet devices via specially crafted HTTP requests. It affects FortiOS and FortiProxy across mul...

CVE-2024-23113

CRITICAL CVSS 9.8 Feb 15, 2024

This critical vulnerability allows remote attackers to execute arbitrary code or commands on affected Fortinet devices by sending specially crafted packets that exploit a format string vulnerability. ...

CVE-2024-21762

CRITICAL CVSS 9.8 Feb 9, 2024

This critical vulnerability allows remote attackers to execute arbitrary code or commands on affected Fortinet devices via specially crafted requests. An out-of-bounds write in FortiOS and FortiProxy ...

CVE-2023-33308

CRITICAL CVSS 9.8 Jul 26, 2023

A critical stack-based buffer overflow vulnerability in Fortinet FortiOS and FortiProxy allows remote unauthenticated attackers to execute arbitrary code via specially crafted packets. This affects sy...

CVE-2023-27997

CRITICAL CVSS 9.8 Jun 13, 2023

A heap-based buffer overflow vulnerability in Fortinet's SSL-VPN implementation allows remote attackers to execute arbitrary code via crafted requests. This affects FortiOS versions 7.2.4 and below, 7...

CVE-2026-22153

HIGH CVSS 8.1 Feb 10, 2026

This vulnerability allows unauthenticated attackers to bypass LDAP authentication for Agentless VPN or FSSO policies in Fortinet FortiOS when the remote LDAP server is configured in a specific way. It...

CVE-2025-25249

HIGH CVSS 8.1 Jan 13, 2026

A heap-based buffer overflow vulnerability in multiple Fortinet products allows attackers to execute arbitrary code or commands via specially crafted packets. This affects FortiOS versions 6.4.0-6.4.1...

CVE-2025-58413

HIGH CVSS 7.5 Nov 18, 2025

A stack-based buffer overflow vulnerability in Fortinet FortiOS and FortiSASE allows attackers to execute arbitrary code via specially crafted packets. This affects multiple FortiOS versions from 6.0 ...

CVE-2025-53843

HIGH CVSS 7.5 Nov 18, 2025

A stack-based buffer overflow vulnerability in Fortinet FortiOS allows attackers to execute arbitrary code via specially crafted packets. This affects FortiOS versions 7.6.0-7.6.3, 7.4.0-7.4.8, and al...

CVE-2025-57740

HIGH CVSS 7.5 Oct 14, 2025

A heap-based buffer overflow vulnerability in Fortinet's FortiOS, FortiPAM, and FortiProxy allows authenticated users to execute arbitrary code via crafted RDP bookmark connection requests. This affec...

CVE-2025-58325

HIGH CVSS 8.2 Oct 14, 2025

This vulnerability allows local authenticated attackers on affected FortiOS versions to execute arbitrary system commands through specially crafted CLI commands. The flaw stems from incorrect function...

CVE-2025-25253

HIGH CVSS 7.5 Oct 14, 2025

This vulnerability allows man-in-the-middle attackers to intercept and tamper with connections to Fortinet's ZTNA proxy by exploiting improper certificate validation. It affects FortiProxy and FortiOS...

CVE-2025-53744

HIGH CVSS 7.2 Aug 12, 2025

A privilege escalation vulnerability in FortiOS Security Fabric allows remote authenticated attackers with high privileges to gain super-admin access by registering the device to a malicious FortiMana...

CVE-2024-26009

HIGH CVSS 8.1 Aug 12, 2025

This CVE describes an authentication bypass vulnerability in Fortinet FortiOS, FortiProxy, and FortiPAM products that allows unauthenticated attackers to take control of managed devices. Attackers can...

CVE-2023-37930

HIGH CVSS 7.5 Apr 8, 2025

This CVE describes memory corruption vulnerabilities in Fortinet VPN products that could allow authenticated VPN users to execute arbitrary code or commands. The vulnerabilities stem from uninitialize...

CVE-2024-26006

HIGH CVSS 7.5 Mar 14, 2025

This vulnerability allows remote unauthenticated attackers to perform cross-site scripting (XSS) attacks through the SSL VPN web interface in affected Fortinet products. Attackers can inject malicious...

CVE-2024-45324

HIGH CVSS 7.2 Mar 11, 2025

A format string vulnerability in multiple Fortinet products allows privileged attackers to execute arbitrary code via crafted HTTP/HTTPS requests. This affects FortiOS, FortiProxy, FortiPAM, FortiSRA,...

CVE-2025-24472

HIGH CVSS 8.1 Feb 11, 2025

This authentication bypass vulnerability in FortiOS and FortiProxy allows remote unauthenticated attackers to gain super-admin privileges on downstream devices when Security Fabric is enabled. Attacke...

CVE-2024-35279

HIGH CVSS 8.1 Feb 11, 2025

A stack-based buffer overflow vulnerability in Fortinet FortiOS allows remote unauthenticated attackers to execute arbitrary code via crafted UDP packets through CAPWAP control. This affects FortiOS v...

CVE-2024-40591

HIGH CVSS 8.8 Feb 11, 2025

This vulnerability allows authenticated administrators with Security Fabric permission to escalate their privileges to super-admin by connecting their FortiGate device to a malicious upstream FortiGat...

CVE-2024-46670

HIGH CVSS 7.5 Jan 14, 2025

An out-of-bounds read vulnerability in FortiOS IPsec IKE service allows unauthenticated remote attackers to trigger memory consumption leading to denial of service via crafted requests. Affected syste...

CVE-2024-46668

HIGH CVSS 7.5 Jan 14, 2025

This CVE describes a resource exhaustion vulnerability in FortiOS where an unauthenticated remote attacker can cause a denial-of-service by uploading multiple large files, consuming all available syst...

CVE-2023-50176

HIGH CVSS 7.5 Nov 12, 2024

This session fixation vulnerability in Fortinet FortiOS allows attackers to hijack user sessions via phishing SAML authentication links. Attackers can execute unauthorized code or commands on affected...

CVE-2024-23110

HIGH CVSS 7.8 Jun 11, 2024

This CVE describes a stack-based buffer overflow vulnerability in Fortinet FortiOS that allows attackers to execute arbitrary code or commands via specially crafted commands. It affects multiple Forti...

CVE-2023-46714

HIGH CVSS 7.2 May 14, 2024

A stack-based buffer overflow vulnerability in Fortinet FortiOS allows authenticated administrative users to execute arbitrary code or commands via crafted HTTP/HTTPS requests. This affects FortiOS ve...

CVE-2023-41677

HIGH CVSS 7.5 Apr 9, 2024

This vulnerability involves insufficiently protected credentials in Fortinet FortiProxy and FortiOS, allowing attackers to execute unauthorized code or commands via social engineering attacks. Affecte...

CVE-2024-23112

HIGH CVSS 8.0 Mar 12, 2024

This CVE describes an authorization bypass vulnerability in FortiOS and FortiProxy SSL-VPN that allows authenticated attackers to access other users' bookmarks through URL manipulation. Attackers can ...

CVE-2023-46717

HIGH CVSS 7.5 Mar 12, 2024

This vulnerability allows a read-only user to escalate privileges to read-write access through successive login attempts in FortiOS when configured with FortiAuthenticator in HA mode. It affects Forti...

CVE-2023-29180

HIGH CVSS 7.5 Feb 22, 2024

A null pointer dereference vulnerability in Fortinet FortiOS and FortiProxy allows attackers to cause denial of service via specially crafted HTTP requests. This affects multiple versions of both prod...

CVE-2023-44250

HIGH CVSS 8.8 Jan 10, 2024

This vulnerability allows authenticated attackers in Fortinet FortiOS and FortiProxy HA clusters to perform elevated actions through crafted HTTP/HTTPS requests. It affects organizations running vulne...

CVE-2023-29183

HIGH CVSS 8.0 Sep 13, 2023

This cross-site scripting (XSS) vulnerability in Fortinet's FortiProxy and FortiOS web management interfaces allows authenticated attackers to inject and execute malicious JavaScript code via crafted ...

CVE-2022-41327

HIGH CVSS 7.8 Jun 13, 2023

This vulnerability allows authenticated attackers with readonly superadmin privileges in Fortinet FortiOS and FortiProxy to intercept cleartext traffic and obtain other administrators' session cookies...

CVE-2023-22640

HIGH CVSS 7.5 May 3, 2023

This CVE describes an out-of-bounds write vulnerability in multiple Fortinet products that allows authenticated attackers to execute arbitrary code or commands via crafted requests. Affected systems i...

CVE-2022-41330

HIGH CVSS 8.8 Apr 11, 2023

This vulnerability allows unauthenticated attackers to execute cross-site scripting (XSS) attacks against Fortinet FortiOS and FortiProxy devices via crafted HTTP GET requests. Attackers can inject ma...

CVE-2022-41335

HIGH CVSS 8.8 Feb 16, 2023

This CVE-2022-41335 is a relative path traversal vulnerability in Fortinet products that allows authenticated attackers to read and write arbitrary files on the underlying Linux system via crafted HTT...

CVE-2021-26108

HIGH CVSS 7.5 Dec 8, 2021

This vulnerability involves hard-coded cryptographic keys in FortiOS SSLVPN that could be extracted through reverse engineering. Attackers could potentially decrypt VPN traffic or impersonate legitima...

CVE-2021-41024

HIGH CVSS 7.5 Dec 8, 2021

This vulnerability allows unauthenticated attackers to perform path traversal attacks on FortiOS and FortiProxy login pages, potentially exposing sensitive server information. Attackers can inject pat...

CVE-2021-26110

HIGH CVSS 7.8 Dec 8, 2021

This vulnerability allows authenticated low-privileged attackers to escalate their privileges to super_admin on affected Fortinet devices. Attackers can exploit improper access control in the autod da...

CVE-2025-64157

MEDIUM CVSS 6.7 Feb 10, 2026

This CVE describes a format string vulnerability in Fortinet FortiOS that allows authenticated administrators to execute arbitrary code or commands via specially crafted configuration inputs. The vuln...

CVE-2025-55018

MEDIUM CVSS 5.8 Feb 10, 2026

This HTTP request smuggling vulnerability in Fortinet FortiOS allows unauthenticated attackers to bypass firewall policies by sending specially crafted HTTP headers. Affected systems include FortiOS v...

CVE-2024-40593

MEDIUM CVSS 6.0 Dec 11, 2025

This vulnerability allows authenticated administrators on affected Fortinet devices to retrieve certificate private keys via the admin shell. This affects FortiAnalyzer, FortiManager, FortiOS, and For...

CVE-2025-62631

MEDIUM CVSS 5.6 Dec 9, 2025

This CVE describes an insufficient session expiration vulnerability in Fortinet FortiOS where active SSLVPN sessions are not terminated after a user's password change under specific conditions. This a...

CVE-2024-47570

MEDIUM CVSS 6.6 Dec 9, 2025

This vulnerability allows read-only administrators to retrieve API tokens of other administrators by examining REST API logs when REST API logging is enabled. This affects Fortinet's FortiOS, FortiPro...

CVE-2025-54822

MEDIUM CVSS 4.3 Oct 14, 2025

An authenticated attacker can access static files from other VDOMs (Virtual Domains) in affected Fortinet products by sending specially crafted HTTP/HTTPS requests. This improper authorization vulnera...

CVE-2025-31366

MEDIUM CVSS 4.7 Oct 14, 2025

This vulnerability allows unauthenticated attackers to perform reflected cross-site scripting (XSS) attacks against Fortinet FortiOS, FortiProxy, and FortiSASE products via crafted HTTP requests. Atta...

CVE-2025-25252

MEDIUM CVSS 4.8 Oct 14, 2025

This vulnerability allows attackers with access to SAML session records to re-open terminated sessions, potentially regaining access to FortiOS SSL VPN. Affected systems include FortiOS SSL VPN versio...

CVE-2024-26008

MEDIUM CVSS 5.3 Oct 14, 2025

This vulnerability allows an unauthenticated attacker to repeatedly reset the fgfm connection via crafted SSL encrypted TCP requests, causing denial of service. Affected systems include FortiOS, Forti...

CVE-2023-46718

MEDIUM CVSS 6.7 Oct 14, 2025

This CVE describes a stack-based buffer overflow vulnerability in Fortinet FortiOS that allows attackers to execute arbitrary code or commands via specially crafted CLI commands. The vulnerability aff...

CVE-2025-22862

MEDIUM CVSS 6.7 Oct 2, 2025

This CVE describes an authentication bypass vulnerability in FortiOS and FortiProxy that allows authenticated attackers to elevate privileges via malicious Webhook actions in the Automation Stitch com...

CVE-2025-25248

MEDIUM CVSS 5.3 Aug 12, 2025

An integer overflow vulnerability in Fortinet SSL-VPN RDP/VNC bookmarks allows authenticated users to craft requests that may crash the SSL-VPN service, causing denial of service. This affects FortiOS...

CVE-2023-45584

MEDIUM CVSS 6.6 Aug 12, 2025

A double free vulnerability in multiple Fortinet products allows privileged attackers to execute arbitrary code or commands via crafted HTTP/HTTPS requests. This affects FortiOS, FortiPAM, and FortiPr...

CVE-2025-24477

MEDIUM CVSS 4.2 Jul 15, 2025

A heap-based buffer overflow vulnerability in Fortinet FortiOS allows authenticated attackers to escalate privileges via specially crafted CLI commands. This affects FortiOS versions 7.6.0-7.6.2, 7.4....

CVE-2024-55599

MEDIUM CVSS 5.3 Jul 8, 2025

This vulnerability allows remote unauthenticated attackers to bypass DNS filtering protections on Fortinet devices when Apple devices are used. It affects FortiOS and FortiProxy across multiple versio...

CVE-2025-25250

MEDIUM CVSS 4.3 Jun 10, 2025

This vulnerability allows authenticated SSL-VPN users to access full SSL-VPN configuration settings through specially crafted URLs. It affects FortiOS versions 7.6.0, 7.4.7 and below, 7.2.x, 7.0.x, an...

CVE-2025-22254

MEDIUM CVSS 6.6 Jun 10, 2025

This CVE describes an improper privilege management vulnerability in multiple Fortinet products where authenticated users with read-only admin permissions can escalate to super-admin privileges via cr...

CVE-2024-50562

MEDIUM CVSS 4.8 Jun 10, 2025

This vulnerability allows attackers who have obtained SSL-VPN session cookies to reuse them even after sessions have expired or been logged out. It affects FortiOS SSL-VPN in multiple versions, potent...

CVE-2025-47294

MEDIUM CVSS 5.3 May 28, 2025

An integer overflow vulnerability in Fortinet FortiOS allows remote unauthenticated attackers to crash the csfd daemon via specially crafted requests. This affects FortiOS versions 7.2.0-7.2.7 and 7.0...

CVE-2019-6697

MEDIUM CVSS 5.3 Mar 17, 2025

This vulnerability allows an unauthenticated attacker on the same network as a FortiGate firewall to inject malicious scripts via crafted DHCP packets. The attack targets the DHCP monitor page's hostn...

CVE-2019-15706

MEDIUM CVSS 4.1 Mar 17, 2025

This vulnerability allows authenticated remote attackers to inject malicious scripts into the SSL VPN portal of affected Fortinet devices. When other users access the compromised portal pages, the scr...

CVE-2022-23439

MEDIUM CVSS 4.7 Jan 22, 2025

This vulnerability allows attackers to poison web caches by sending crafted HTTP requests with malicious Host headers to Fortinet devices. Attackers can redirect users to arbitrary malicious servers, ...

CVE-2024-46666

MEDIUM CVSS 5.3 Jan 14, 2025

This CVE describes a resource allocation vulnerability in FortiOS that allows remote unauthenticated attackers to send specially crafted requests to specific endpoints, causing denial of service by pr...

CVE-2023-42785

MEDIUM CVSS 6.5 Jan 14, 2025

A null pointer dereference vulnerability in FortiOS allows attackers to cause denial of service via specially crafted HTTP requests. This affects FortiOS versions 6.0 through 7.4.1 across multiple rel...

CVE-2023-46715

MEDIUM CVSS 5.0 Jan 14, 2025

This CVE allows authenticated IPSec VPN users with dynamic IP addressing to send spoofed packets appearing to come from other VPN users. It affects Fortinet FortiOS versions 7.4.0-7.4.1 and 7.2.6 and ...

CVE-2020-12820

MEDIUM CVSS 5.4 Dec 19, 2024

A stack-based buffer overflow vulnerability in FortiOS SSL VPN under non-default configurations allows authenticated remote attackers to crash the FortiClient NAC daemon (fcnacd) and potentially execu...

CVE-2020-12819

MEDIUM CVSS 5.4 Dec 19, 2024

A heap-based buffer overflow vulnerability in FortiGate's SSL VPN daemon allows remote attackers with valid SSL VPN credentials to crash the service by sending a specially crafted Link Control Protoco...

CVE-2024-33510

MEDIUM CVSS 4.3 Nov 12, 2024

This CVE describes an injection vulnerability in Fortinet's SSL-VPN web user interface that could allow remote unauthenticated attackers to perform phishing attempts. The vulnerability affects FortiOS...

CVE-2024-26011

MEDIUM CVSS 5.3 Nov 12, 2024

This vulnerability allows unauthenticated attackers to execute arbitrary code or commands on affected Fortinet devices by sending specially crafted packets. It affects multiple Fortinet products inclu...

CVE-2024-36505

MEDIUM CVSS 5.1 Aug 13, 2024

This CVE describes an improper access control vulnerability in FortiOS that allows an attacker with existing write access to the system to bypass file integrity checking. The vulnerability affects mul...

CVE-2025-54821

LOW CVSS 1.9 Nov 18, 2025

This CVE describes an improper privilege management vulnerability in multiple Fortinet products that allows authenticated administrators to bypass trusted host policies via crafted CLI commands. The v...