FO
Network Security
FortiOS
by Fortinet · last CVE Oct 27, 2026
On CISA KEVExploited in the wildRansomware-linked
282
CVEs
21
On KEV
9.8
Max CVSS
2
New 30D
Severity mix
Critical 23High 86Medium 146Low 10
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2025-61624
In wildKEV
6.5
1%
Apr 14
Fortinet Multiple Products Path Traversal Vulnerability
Affected: 7.6.0 through 7.6.4; 7.4.0 through 7.4.9; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2019-5591
RansomwareIn wildKEV
6.5
19%
Aug 14
Fortinet FortiOS Default Configuration Vulnerability
Affected: FortiOS 6.2.0 and below.
CVE-2019-6693
RansomwareIn wildKEV
6.5
7%
Nov 21
Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability
Affected: 5.6.9 and below; 6.0.5 and below; 6.2.0
CVE-2018-13383
RansomwareIn wildKEV
6.5
34%
May 29
Fortinet FortiOS and FortiProxy Out-of-bounds Write
Affected: 5.2.0 before 5.2.15; 5.4.0 before 5.4.13; 5.6.0 before 5.6.11; 6.0.0 before 6.0.5
CVE-2025-68686
In wildKEV
5.9
29%
Feb 10
Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
Affected: 7.6.0 through 7.6.1; 7.4.0 through 7.4.6; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2018-13374
RansomwareIn wildKEV
4.3
38%
Jan 22
Fortinet FortiOS and FortiADC Improper Access Control Vulnerability
Affected: before 6.0.3
CVE-2025-67862
6.7
0%
Jun 9
An Internal Asset Exposed to Unsafe Debug Access Level or State vulnerability [CWE-1244] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7,…
Affected: 7.6.0 through 7.6.1; 7.4.0 through 7.4.6; 7.2.0 through 7.2.10; 7.0.0 through 7.0.16; 6.4.0 through 6.4.16
CVE-2025-58325
6.7
0%
Oct 14
An Incorrect Provision of Specified Functionality vulnerability [CWE-684] in FortiOS 7.6.0, 7.4.0 through 7.4.5, 7.2.5 through 7.2.10, 7.0.0 through 7.0.15, 6.4 all versions may…
Affected: 6.4.0 before 7.0.16; 7.2.0 before 7.2.11; 7.4.0 before 7.4.6; 7.6.0
CVE-2025-22862
6.7
0%
Oct 2
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] in FortiOS 7.4.0 through 7.4.7, 7.2.0 through 7.2.11, 7.0.6 and above; and FortiProxy 7.6.0…
Affected: 7.4.0 through 7.4.7; 7.2.0 through 7.2.11; 7.0.6 through 7.0.18
CVE-2025-24477
6.7
0%
Jul 15
A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.12 allows an attacker to escalate its…
Affected: 7.2.4 before 7.2.12; 7.4.0 before 7.4.8; 7.6.0 before 7.6.3
CVE-2023-40721
6.7
0%
Feb 11
A use of externally-controlled format string vulnerability [CWE-134] vulnerability in Fortinet allows a privileged attacker to execute arbitrary code or commands via specially…
Affected: 6.2.0 before 7.0.14; 7.2.0 before 7.2.7; 7.4.0
CVE-2023-36640
6.7
0%
May 14
A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2…
Affected: 7.4.0; 7.2.0 through 7.2.5; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16; 6.2.0 through 6.2.17; 6.0.0 through 6.0.16
CVE-2023-48784
6.7
1%
Apr 9
A use of externally-controlled format string vulnerability [CWE-134] in FortiOS version 7.4.1 and below, version 7.2.7 and below, 7.0 all versions, 6.4 all versions command line…
Affected: 6.4.0 before 7.0.16; 7.2.0 before 7.2.8; 7.4.0 before 7.4.2
CVE-2023-28002
6.7
0%
Nov 14
An improper validation of integrity check value vulnerability [CWE-354] in FortiOS 7.2.0 through 7.2.3, 7.0.0 through 7.0.12, 6.4 all versions, 6.2 all versions, 6.0 all versions…
Affected: 6.0.0 through 6.0.17; 6.2.0 through 6.2.15; 6.4.0 through 6.4.14; 7.0.0 through 7.0.12; 7.2.0 through 7.2.3
CVE-2023-29182
6.7
0%
Aug 17
A stack-based buffer overflow vulnerability [CWE-121] in Fortinet FortiOS before 7.0.3 allows a privileged attacker to execute arbitrary code via specially crafted CLI commands,…
Affected: 6.2.0 before 7.0.4
CVE-2021-43072
6.7
0%
Jul 18
A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiAnalyzer version 7.0.2 and below, version 6.4.7 and below, version 6.2.9 and below,…
Affected: 6.0.0 before 6.2.11; 6.4.0 before 6.4.9; 7.0.0 before 7.0.6
CVE-2021-44170
6.7
0%
Jul 18
A stack-based buffer overflow vulnerability [CWE-121] in the command line interpreter of FortiOS before 7.0.4 and FortiProxy before 2.0.8 may allow an authenticated attacker to…
Affected: 6.0.0 through 6.0.14; 6.2.0 before 6.2.11; 6.4.0 before 6.4.9; 7.0.0 through 7.0.2
CVE-2021-42757
6.7
1%
Dec 8
A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code…
Affected: 5.0.0 through 6.0.13; 6.2.0 through 6.2.9; 6.4.0 through 6.4.7; 7.0.0 through 7.0.2
CVE-2026-59837
6.6
1%
Jul 14
A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2 all versions, FortiPAM 1.8.0 through 1.8.2, FortiPAM 1.7 all versions, FortiPAM…
Affected: 7.4.0 through 7.4.1; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2024-47570
6.6
0%
Dec 9
An insertion of sensitive information into log file vulnerability [CWE-532] in FortiOS 7.4.0 through 7.4.3, 7.2.0 through 7.2.7, 7.0 all versions; FortiProxy 7.4.0 through 7.4.3,…
Affected: 7.0.4 through 7.0.17; 7.2.0 before 7.2.8; 7.4.0 before 7.4.4
CVE-2025-25252
6.5
0%
Oct 14
An Insufficient Session Expiration vulnerability [CWE-613] in FortiOS SSL VPN 7.6.0 through 7.6.2, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.0 through 7.0.16, 6.4 all…
Affected: 6.4.0 before 7.0.17; 7.2.0 before 7.2.11; 7.4.0 before 7.4.7; 7.6.0 before 7.6.3
CVE-2025-25248
6.5
0%
Aug 12
An Integer Overflow or Wraparound vulnerability [CWE-190] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below, 7.2 all versions, 6.4 all…
Affected: 7.6.0 through 7.6.2; 7.4.0 through 7.4.7; 7.2.0 through 7.2.10; 7.0.0 through 7.0.17; 6.4.0 through 6.4.16
CVE-2025-24471
6.5
0%
Jun 10
An Improper Certificate Validation vulnerability [CWE-295] in FortiOS version 7.6.1 and below, version 7.4.7 and below may allow an EAP verified remote user to connect from…
Affected: 7.6.0 through 7.6.1; 7.4.0 through 7.4.7
CVE-2024-46669
6.5
1%
Jan 14
An Integer Overflow or Wraparound vulnerability [CWE-190] in version 7.4.4 and below, version 7.2.10 and below; FortiSASE version 23.4.b FortiOS tenant IPsec IKE service may allow…
Affected: 7.2.0 before 7.4.5
CVE-2024-36504
6.5
1%
Jan 14
An out-of-bounds read vulnerability [CWE-125] in FortiOS SSLVPN web portal versions 7.4.0 through 7.4.4, versions 7.2.0 through 7.2.8, 7.0 all verisons, and 6.4 all versions may…
Affected: 6.4.0 before 7.2.9; 7.4.0 before 7.4.5
CVE-2023-42786
6.5
1%
Jan 14
A null pointer dereference in FortiOS versions 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0 all versions, 6.4 all versions , 6.2 all versions and 6.0 all versions allows attacker…
Affected: 6.0.0 before 7.2.6; 7.4.0 before 7.4.2
CVE-2023-42785
6.5
1%
Jan 14
A null pointer dereference in FortiOS versions 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0 all versions, 6.4 all versions , 6.2 all versions and 6.0 all versions allows attacker…
Affected: 6.0.0 before 7.2.6; 7.4.0 before 7.4.2
CVE-2023-29179
6.5
2%
Feb 22
A null pointer dereference in Fortinet FortiOS version 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, Fortiproxy version 7.2.0 through 7.2.4, 7.0.0 through…
Affected: 6.4.0 before 6.4.13; 7.0.0 before 7.0.12; 7.2.0 before 7.2.5
CVE-2023-36641
6.5
1%
Nov 14
A numeric truncation error vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0.0 through 7.0.12, FortiOS 6.4 all versions, FortiOS 6.2 all versions,…
Affected: 7.4.0; 7.2.0 through 7.2.5; 7.0.0 through 7.0.12; 6.4.0 through 6.4.16; 6.2.0 through 6.2.17; 6.0.0 through 6.0.18
CVE-2023-33307
6.5
1%
Jun 16
A null pointer dereference in Fortinet FortiOS before 7.2.5 and before 7.0.11, FortiProxy before 7.2.3 and before 7.0.9 allows attacker to denial of sslvpn service via…
Affected: 7.0.0 before 7.0.11; 7.2.0 before 7.2.5
CVE-2023-33306
6.5
1%
Jun 16
A null pointer dereference in Fortinet FortiOS before 7.2.5, before 7.0.11 and before 6.4.13, FortiProxy before 7.2.4 and before 7.0.10 allows attacker to denial of sslvpn…
Affected: 6.4.0 before 6.4.13; 7.0.0 before 7.0.11; 7.2.0 before 7.2.5
CVE-2023-33305
6.5
1%
Jun 13
A loop with unreachable exit condition ('infinite loop') in Fortinet FortiOS version 7.2.0 through 7.2.4, FortiOS version 7.0.0 through 7.0.10, FortiOS 6.4 all versions, FortiOS…
Affected: 5.0.0 through 5.0.14; 5.2.0 through 5.2.15; 5.4.0 through 5.4.13; 5.6.0 through 5.6.14; 6.0.0 through 6.0.17; 6.2.0 through 6.2.15; +3 more
CVE-2023-26207
6.5
0%
Jun 13
An insertion of sensitive information into log file vulnerability in Fortinet FortiOS 7.2.0 through 7.2.4 and FortiProxy 7.0.0 through 7.0.10
Affected: 7.2.0 through 7.2.4
CVE-2022-45861
6.5
1%
Mar 7
An access of uninitialized pointer vulnerability [CWE-824] in the SSL VPN portal of Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.9 and before 6.4.11 and…
Affected: 6.2.0 through 6.2.13; 6.4.0 through 6.4.11; 7.0.0 through 7.0.9; 7.2.0 through 7.2.3
CVE-2021-41019
6.5
1%
Nov 2
An improper validation of certificate with host mismatch [CWE-297] vulnerability in FortiOS versions 6.4.6 and below may allow the connection to a malicious LDAP server via…
Affected: 6.4.0 through 6.4.6
CVE-2019-17656
6.5
2%
Apr 12
A Stack-based Buffer Overflow vulnerability in the HTTPD daemon of FortiOS 6.0.10 and below, 6.2.2 and below and FortiProxy 1.0.x, 1.1.x, 1.2.9 and below, 2.0.0 and below may…
Affected: through 6.0.10; 6.2.0 through 6.2.2
CVE-2020-6648
6.5
1%
Oct 21
A cleartext storage of sensitive information vulnerability in FortiOS command line interface in versions 6.2.4 and earlier and FortiProxy 2.0.0, 1.2.9 and earlier may allow an…
Affected: before 6.0.12; 6.2.0 before 6.2.5
CVE-2019-5587
6.5
0%
Jun 4
Lack of root file system integrity checking in Fortinet FortiOS VM application images all versions below 6.0.5 may allow attacker to implant malicious programs into the installing…
Affected: before 6.0.5
CVE-2017-14182
6.5
2%
Oct 27
A Denial of Service (DoS) vulnerability in Fortinet FortiOS 5.4.0 to 5.4.5 allows an authenticated user to cause the web GUI to be temporarily unresponsive, via passing a…
Affected: 5.4.0; 5.4.1; 5.4.2; 5.4.3; 5.4.4; 5.4.5
CVE-2017-14187
6.2
0%
May 24
A local privilege escalation and local code execution vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8, and 5.2 and below versions allows attacker to execute…
Affected: through 5.2.0; 5.4.0 through 5.4.8; 5.6.0 through 5.6.2
CVE-2026-23573
6.1
0%
Jul 14
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4…
Affected: 7.6.0 through 7.6.6; 7.4.0 through 7.4.12; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2025-31366
6.1
0%
Oct 14
An Improper Neutralization of Input During Web Page Generation vulnerability [CWE-79] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS…
Affected: 7.6.0 through 7.6.2; 7.4.0 through 7.4.7; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2025-47890
6.1
0%
Oct 14
An URL Redirection to Untrusted Site vulnerabilities [CWE-601] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions,…
Affected: 7.6.0 through 7.6.2; 7.4.0 through 7.4.8; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2019-16151
6.1
0%
Mar 21
An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to…
Affected: 6.2.0 before 6.2.10; 6.4.0 before 6.4.2
CVE-2019-6697
6.1
0%
Mar 17
An Improper Neutralization of Input vulnerability affecting FortiGate version 6.2.0 through 6.2.1, 6.0.0 through 6.0.6 in the hostname parameter of a DHCP packet under DHCP…
Affected: 6.0.0 before 6.0.7; 6.2.0 before 6.2.2
CVE-2024-26006
6.1
1%
Mar 14
An improper neutralization of input during web page Generation vulnerability [CWE-79] in FortiOS version 7.4.3 and below, version 7.2.7 and below, version 7.0.13 and below and…
Affected: 6.4.0 before 7.0.14; 7.2.0 before 7.2.8; 7.4.0 before 7.4.4
CVE-2022-23439
6.1
0%
Jan 22
A externally controlled reference to a resource in another sphere vulnerability in Fortinet allows attacker to poison web caches via crafted HTTP requests, where the `Host`…
Affected: 6.0.0 before 7.0.6; 7.2.0 before 7.2.5
CVE-2022-41330
6.1
1%
Apr 11
An improper neutralization of input during web page generation vulnerability ('Cross-site Scripting') [CWE-79] in Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0…
Affected: 6.2.0 before 6.2.13; 6.4.0 before 6.4.12; 7.0.0 before 7.0.10; 7.2.0 before 7.2.4
CVE-2022-41334
6.1
1%
Feb 16
An improper neutralization of input during web page generation [CWE-79] vulnerability in FortiOS versions 7.0.0 to 7.0.7 and 7.2.0 to 7.2.3 may allow a remote, unauthenticated…
Affected: 7.0.0 through 7.0.7; 7.2.0 through 7.2.3
CVE-2022-23438
6.1
1%
Jul 18
An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability in FortiOS version 7.0.5 and prior and 6.4.9 and prior may allow an…
Affected: through 6.4.9; 7.0.0 through 7.0.5
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