CVE-2020-12812Critical· 9.8▾ Hadal⚠ Exploited in the wildPoC availableAn improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if t…
▾ Hadal zone — Critical and actively exploited (CISA KEV / 0day)
impact 53.9 · likelihood 9.1 · exploitation 25 · ransomware 5
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Aug 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Federal remediation due May 3, 2022
49%
Exploit / PoC code exists
Last analysed / modified upstream
Added to the CISA catalog on Nov 3, 2021. Federal remediation due May 3, 2022. View catalog ↗
An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.
fortios < 6.0.10fortios >= 6.2.0, < 6.2.4fortios = 6.4.0Upgrade past the affected range:
fortios 6.2.4Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2019-5591Medium· 6.5A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.
CVE-2019-6693Medium· 6.5Use of a hard-coded cryptographic key to cipher sensitive data in FortiOS configuration backup file may allow an attacker with access to the backup file to decipher the sensitive data, via knowledge of the hard-coded key
CVE-2025-59718Critical· 9.1A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy…
CVE-2024-50562Medium· 4.4An Insufficient Session Expiration vulnerability [CWE-613] in FortiOS SSL-VPN version 7.6.0, version 7.4.6 and below, version 7.2.10 and below, 7.0 all versions, 6.4 all versions may allow an attacker in possession of a cookie used to lo…
CVE-2025-61624Medium· 6.0An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') [CWE-22] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.…
CVE-2026-104286Critical· 9.8An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2.0 through 7.2.9 may al…