Vulnerabilities > Fortinet > Fortios > Critical

DATE CVE VULNERABILITY TITLE RISK
2021-12-08 CVE-2021-26109 Integer Overflow or Wraparound vulnerability in Fortinet Fortios
An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.
network
low complexity
fortinet CWE-190
critical
9.8
2020-07-24 CVE-2020-12812 Improper Handling of Case Sensitivity vulnerability in Fortinet Fortios
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.
network
low complexity
fortinet CWE-178
critical
9.8
2019-06-04 CVE-2018-13379 Path Traversal vulnerability in Fortinet Fortios and Fortiproxy
An Improper Limitation of a Pathname to a Restricted Directory ("Path Traversal") in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.3 to 5.6.7 and 5.4.6 to 5.4.12 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to download system files via special crafted HTTP resource requests.
network
low complexity
fortinet CWE-22
critical
9.8
2019-02-08 CVE-2018-1352 Use of Externally-Controlled Format String vulnerability in Fortinet Fortios 5.6.0
A format string vulnerability in Fortinet FortiOS 5.6.0 allows attacker to execute unauthorized code or commands via the SSH username variable.
network
low complexity
fortinet CWE-134
critical
9.8
2016-08-24 CVE-2016-6909 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Fortinet Fortios and Fortiswitch
Buffer overflow in the Cookie parser in Fortinet FortiOS 4.x before 4.1.11, 4.2.x before 4.2.13, and 4.3.x before 4.3.9 and FortiSwitch before 3.4.3 allows remote attackers to execute arbitrary code via a crafted HTTP request, aka EGREGIOUSBLUNDER.
network
low complexity
fortinet CWE-119
critical
9.8
2016-01-15 CVE-2016-1909 Permissions, Privileges, and Access Controls vulnerability in Fortinet Fortios
Fortinet FortiAnalyzer before 5.0.12 and 5.2.x before 5.2.5; FortiSwitch 3.3.x before 3.3.3; FortiCache 3.0.x before 3.0.8; and FortiOS 4.1.x before 4.1.11, 4.2.x before 4.2.16, 4.3.x before 4.3.17 and 5.0.x before 5.0.8 have a hardcoded passphrase for the Fortimanager_Access account, which allows remote attackers to obtain administrative access via an SSH session.
network
low complexity
fortinet CWE-264
critical
9.8