Fortinet security briefs
24 published alerts for Fortinet products and services.
Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability
Fortinet Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-25249). Fortinet FortiOS, FortiSwitchManager, and FortiSASE contain a heap-based buffer overflow vulnerability that allows an attacker to execute unauthorized code or commands via specially crafted packets. CISA remediation due date: 2026-09-12. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-68686). Fortinet FortiOS contains an exposure of sensitive information to an unauthorized actor vulnerability. This may allow a remote unauthenticated attacker to bypass the patch developed for the symbolic link persistency mechanism observed in some post-exploit cases, via crafted HTTP requests. An attacker would need first to have compromised the product via another vulnerability, at filesystem level. CISA remediation due date: 2026-08-10. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiSandbox OS Command Injection Vulnerability
Fortinet FortiSandbox is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-39808). Fortinet FortiSandbox contains an OS command injection vulnerability that could allow an unauthenticated attacker to execute unauthorized code or commands via crafted HTTP requests. CISA remediation due date: 2026-07-19. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiSandbox OS Command Injection Vulnerability
Fortinet FortiSandbox is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-25089). Fortinet FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS contain an OS command injection vulnerability that allows an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests. CISA remediation due date: 2026-07-19. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiClient EMS SQL Injection Vulnerability
Fortinet FortiClient EMS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-21643). Fortinet FortiClient EMS contains a SQL injection vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests. CISA remediation due date: 2026-04-16. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiClient EMS Improper Access Control Vulnerability
Fortinet FortiClient EMS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-35616). Fortinet FortiClient EMS contains an improper access control vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests. CISA remediation due date: 2026-04-09. If you need help checking exposure, call (864) 335-9223.
Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability
Fortinet Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-24858). Fortinet FortiAnalyzer, FortiManager, FortiOS, and FortiProxy contain an authentication bypass using an alternate path or channel that could allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices. CISA remediation due date: 2026-01-30. If you need help checking exposure, call (864) 335-9223.
Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability
Fortinet Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-59718). Fortinet FortiOS, FortiSwitchMaster, FortiProxy, and FortiWeb contain an improper verification of cryptographic signature vulnerability that may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML message. Please be aware that CVE-2025-59719 pertains to the same problem and is mentioned in the same vendor advisory. Ensure to apply all patches mentioned in the advisory. CISA remediation due date: 2025-12-23. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiWeb OS Command Injection Vulnerability
Fortinet FortiWeb is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-58034). Fortinet FortiWeb contains an OS command Injection vulnerability that may allow an authenticated attacker to execute unauthorized code on the underlying system via crafted HTTP requests or CLI commands. CISA remediation due date: 2025-11-25. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiWeb Path Traversal Vulnerability
Fortinet FortiWeb is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-64446). Fortinet FortiWeb contains a relative path traversal vulnerability that may allow an unauthenticated attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests. CISA remediation due date: 2025-11-21. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2019-6693). Fortinet FortiOS contains a use of hard-coded credentials vulnerability that could allow an attacker to cipher sensitive data in FortiOS configuration backup file via knowledge of the hard-coded key. CISA remediation due date: 2025-07-16. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
Fortinet FortiOS and FortiProxy is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-24472). Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that allows a remote attacker to gain super-admin privileges via crafted CSF proxy requests. CISA remediation due date: 2025-04-08. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
Fortinet FortiOS and FortiProxy is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2024-55591). Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that may allow an unauthenticated, remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module. CISA remediation due date: 2025-01-21. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiClient EMS SQL Injection Vulnerability
Fortinet FortiClient EMS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2023-48788). Fortinet FortiClient EMS contains a SQL injection vulnerability that allows an unauthenticated attacker to execute commands as SYSTEM via specifically crafted requests. CISA remediation due date: 2024-04-15. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS Out-of-Bound Write Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2024-21762). Fortinet FortiOS contains an out-of-bound write vulnerability that allows a remote unauthenticated attacker to execute code or commands via specially crafted HTTP requests. CISA remediation due date: 2024-02-16. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability
Fortinet FortiOS and FortiProxy SSL-VPN is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2023-27997). Fortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute code or commands via specifically crafted requests. CISA remediation due date: 2023-07-04. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2022-42475). Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests. CISA remediation due date: 2023-01-03. If you need help checking exposure, call (864) 335-9223.
Fortinet Multiple Products Authentication Bypass Vulnerability
Fortinet Multiple Products is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2022-40684). Fortinet FortiOS, FortiProxy, and FortiSwitchManager contain an authentication bypass vulnerability that could allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests. CISA remediation due date: 2022-11-01. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS and FortiADC Improper Access Control Vulnerability
Fortinet FortiOS and FortiADC is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2018-13374). Fortinet FortiOS and FortiADC contain an improper access control vulnerability that allows attackers to obtain the LDAP server login credentials configured in FortiGate by pointing a LDAP server connectivity test request to a rogue LDAP server. CISA remediation due date: 2022-09-29. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS and FortiProxy Out-of-bounds Write vulnerability
Fortinet FortiOS and FortiProxy is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2018-13383). A heap buffer overflow in Fortinet FortiOS and FortiProxy may cause the SSL VPN web service termination for logged in users. CISA remediation due date: 2022-07-10. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS and FortiProxy Improper Authorization vulnerability
Fortinet FortiOS and FortiProxy is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2018-13382). An Improper Authorization vulnerability in Fortinet FortiOS and FortiProxy under SSL VPN web portal allows an unauthenticated attacker to modify the password. CISA remediation due date: 2022-07-10. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS SSL VPN Improper Authentication Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2020-12812). Fortinet FortiOS SSL VPN contains an improper authentication vulnerability that may allow a user to login successfully without being prompted for the second factor of authentication (FortiToken) if they change the case in their username. CISA remediation due date: 2022-05-03. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS Default Configuration Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2019-5591). Fortinet FortiOS contains a default configuration vulnerability that may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the Lightweight Directory Access Protocol (LDAP) server. CISA remediation due date: 2022-05-03. If you need help checking exposure, call (864) 335-9223.
Fortinet FortiOS SSL VPN Path Traversal Vulnerability
Fortinet FortiOS is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2018-13379). Fortinet FortiOS SSL VPN web portal contains a path traversal vulnerability that may allow an unauthenticated attacker to download FortiOS system files through specially crafted HTTP resource requests. CISA remediation due date: 2022-05-03. If you need help checking exposure, call (864) 335-9223.