FO
Network Security
FortiOS
by Fortinet · last CVE Oct 27, 2026
On CISA KEVExploited in the wildRansomware-linked
284
CVEs
21
On KEV
9.8
Max CVSS
2
New 30D
Severity mix
Critical 23High 86Medium 147Low 11
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2017-7735
5.4
1%
Sep 12
A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.2.0 through 5.2.11 and 5.4.0 through 5.4.4 allows attackers to execute unauthorized code or commands via the…
Affected: 5.2.0; 5.2.1; 5.2.2; 5.2.3; 5.2.4; 5.2.5; +11 more
CVE-2017-7734
5.4
1%
Sep 12
A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.4.0 through 5.4.4 allows attackers to execute unauthorized code or commands via 'Comments' while saving Config…
Affected: 5.4.0; 5.4.1; 5.4.2; 5.4.3; 5.4.4
CVE-2017-3131
5.4
8%
Sep 12
A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.4.0 through 5.4.4 and 5.6.0 allows attackers to execute unauthorized code or commands via the filter input in…
Affected: 5.4.0; 5.4.1; 5.4.2; 5.4.3; 5.4.4; 5.6.0
CVE-2026-70466
5.3
0%
Aug 12
A incomplete list of disallowed inputs vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4 all versions, FortiWeb 7.2 all versions,…
Affected: 7.6.0 through 7.6.7; 7.4.0 through 7.4.11; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2026-71408
5.3
0%
Aug 12
A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 all versions, FortiOS 7.2 all versions may allow attacker…
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-2024-26008
5.3
1%
Oct 14
An improper check or handling of exceptional conditions vulnerability [CWE-703] in FortiOS version 7.4.0 through 7.4.3 and before 7.2.7, FortiProxy version 7.4.0 through 7.4.3 and…
Affected: 6.2.0 before 7.2.8; 7.4.0 before 7.4.4
CVE-2024-55599
5.3
0%
Jul 8
An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiOS version 7.6.0, version 7.4.7 and below, 7.0 all versions, 6.4 all versions and FortiProxy…
Affected: 7.6.0; 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-2025-22251
5.3
0%
Jun 10
An improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in FortiOS 7.6.0, 7.4.0 through 7.4.5, 7.2 all versions, 7.0 all versions, 6.4 all…
Affected: 6.4.0 before 7.4.6; 7.6.0
CVE-2025-47294
5.3
1%
May 28
A integer overflow or wraparound in Fortinet FortiOS versions 7.2.0 through 7.2.7, versions 7.0.0 through 7.0.14 may allow a remote unauthenticated attacker to crash the csfd…
Affected: 6.4.0 before 7.0.15; 7.2.0 before 7.2.8
CVE-2024-46666
5.3
1%
Jan 14
An allocation of resources without limits or throttling [CWE-770] vulnerability in FortiOS versions 7.6.0, versions 7.4.4 through 7.4.0, 7.2 all versions, 7.0 all versions, 6.4…
Affected: 6.4.0 before 7.2.9; 7.4.0 before 7.4.5; 7.6.0
CVE-2023-47536
5.3
1%
Dec 13
An improper access control vulnerability [CWE-284] in FortiOS version 7.2.0, version 7.0.13 and below, version 6.4.14 and below and FortiProxy version 7.2.3 and below, version…
Affected: 6.4.0 through 6.4.14; 7.0.0 through 7.0.13; 7.2.0
CVE-2023-41675
5.3
1%
Oct 10
A use after free vulnerability [CWE-416] in FortiOS version 7.2.0 through 7.2.4 and version 7.0.0 through 7.0.10 and FortiProxy version 7.2.0 through 7.2.2 and version 7.0.0…
Affected: 7.0.0 through 7.0.10; 7.2.0 through 7.2.4
CVE-2022-41329
5.3
1%
Mar 7
An exposure of sensitive information to an unauthorized actor vulnerability [CWE-200] in Fortinet FortiProxy version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.7, FortiOS version…
Affected: 6.2.3 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-2022-22306
5.3
0%
May 24
An improper certificate validation vulnerability [CWE-295] in FortiOS 6.0.0 through 6.0.14, 6.2.0 through 6.2.10, 6.4.0 through 6.4.8, 7.0.0 may allow a network adjacent and…
Affected: 6.0.0 through 6.0.14; 6.2.0 through 6.2.10; 6.4.0 before 6.4.9; 7.0.0
CVE-2020-12818
5.3
1%
Sep 24
An insufficient logging vulnerability in FortiGate before 6.4.1 may allow the traffic from an unauthenticated attacker to Fortinet owned IP addresses to go unnoticed
Affected: before 6.4.1
CVE-2018-13367
5.3
1%
Aug 23
An information exposure vulnerability in FortiOS 6.2.3, 6.2.0 and below may allow an unauthenticated attacker to gain platform information such as version, models, via parsing a…
Affected: through 6.2.0
CVE-2018-13365
5.3
1%
May 29
An Information Exposure vulnerability in Fortinet FortiOS 6.0.1, 5.6.5 and below, allow attackers to learn private IP as well as the hostname of FortiGate via Application Control…
Affected: through 5.6.5; 5.6.6 through 6.0.1
CVE-2018-13366
5.3
1%
Apr 9
An information disclosure vulnerability in Fortinet FortiOS 6.0.1, 5.6.7 and below allows attacker to reveals serial number of FortiGate via hostname field defined in connection…
Affected: through 5.6.7; 6.0.0; 6.0.1
CVE-2017-14185
5.3
1%
May 25
An Information Disclosure vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8 and 5.2 all versions allows SSL VPN web portal users to access internal FortiOS…
Affected: 5.2.0 through 5.2.13; 5.4.0 through 5.4.8; 5.6.0 through 5.6.2
CVE-2020-29010
5.0
1%
Mar 17
An exposure of sensitive information to an unauthorized actor vulnerability in FortiOS version 6.2.4 and below, version 6.0.10 and belowmay allow remote authenticated actors to…
Affected: 6.0.0 before 6.0.11; 6.2.0 before 6.2.5
CVE-2023-45586
5.0
0%
May 14
An insufficient verification of data authenticity vulnerability [CWE-345] in Fortinet FortiOS SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and…
Affected: 6.2.0 through 6.2.16; 6.4.0 through 6.4.15; 7.0.0 before 7.0.13; 7.2.0 before 7.2.8; 7.4.0; 7.4.1
CVE-2025-58903
4.9
1%
Oct 14
An Unchecked Return Value vulnerability [CWE-252] in Fortinet FortiOS version 7.6.0 through 7.6.3 and before 7.4.8 API allows an authenticated user to cause a Null Pointer…
Affected: 7.6.0 through 7.6.3; 7.4.0 through 7.4.8; 7.2.0 through 7.2.12; 7.0.0 through 7.0.18; 6.4.0 through 6.4.16
CVE-2016-7542
4.9
2%
Mar 30
A read-only administrator on Fortinet devices with FortiOS 5.2.x before 5.2.10 GA and 5.4.x before 5.4.2 GA may have access to read-write administrators password hashes (not…
Affected: 5.2.0; 5.2.1; 5.2.2; 5.2.3; 5.2.4; 5.2.5; +6 more
CVE-2024-50562
4.8
1%
Jun 10
An 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…
Affected: 7.6.0; 7.4.6; 7.4.0 through 7.4.4; 7.2.0 through 7.2.10; 7.0.0 through 7.0.17; 6.4.0 through 6.4.16
CVE-2024-23111
4.8
1%
Jun 11
An improper neutralization of input during web page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS version 7.4.3 and below, 7.2 all versions, 7.0 all…
Affected: 7.0.0 before 7.0.14; 7.2.0 before 7.2.8; 7.4.0 before 7.4.4
CVE-2023-47537
4.8
0%
Feb 15
An improper certificate validation vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.15, FortiOS 6.4 all versions …
Affected: 7.0.0 before 7.0.14; 7.2.0 through 7.2.6; 7.4.0; 7.4.1
CVE-2023-29175
4.8
0%
Jun 13
An improper certificate validation vulnerability [CWE-295] in FortiOS 6.2 all versions, 6.4 all versions, 7.0.0 through 7.0.10, 7.2.0 and FortiProxy 1.2 all versions, 2.0 all…
Affected: 6.0.0 through 6.0.17; 6.2.0 through 6.2.15; 6.4.0 through 6.4.13; 7.0.0 before 7.0.11; 7.2.0
CVE-2017-3128
4.8
1%
May 23
A stored XSS (Cross-Site-Scripting) vulnerability in Fortinet FortiOS allows attackers to execute unauthorized code or commands via the policy global-label parameter
Affected: 5.0.0; 5.0.1; 5.0.2; 5.0.3; 5.0.4; 5.0.5; +20 more
CVE-2024-26015
4.7
0%
Jul 9
An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiProxy version 7.4.3 and below, version 7.2.10 and below, version 7.0.17 and below and…
Affected: 7.0.0 through 7.0.15; 7.2.0 through 7.2.8; 7.4.0 through 7.4.3
CVE-2020-15936
4.5
1%
Mar 1
A improper input validation in Fortinet FortiGate version 6.4.3 and below, version 6.2.5 and below, version 6.0.11 and below, version 5.6.13 and below allows attacker to disclose…
Affected: 5.6.0 through 5.6.13; 6.0.0 through 6.0.11; 6.2.0 through 6.2.5; 6.4.0 through 6.4.3
CVE-2024-40593
4.4
0%
Dec 11
A key management errors vulnerability in Fortinet FortiAnalyzer 7.4.0 through 7.4.2, FortiAnalyzer 7.2.0 through 7.2.5, FortiAnalyzer 7.0 all versions, FortiAnalyzer 6.4 all…
Affected: 7.0.14; 7.2.7; 7.4.4; 7.6.0
CVE-2024-32122
4.4
0%
Apr 8
A storing passwords in a recoverable format in Fortinet FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker…
Affected: 7.4.0 through 7.4.8; 7.2.0 through 7.2.12; 7.0.0 through 7.0.18; 6.4.0 through 6.4.16
CVE-2024-21754
4.4
3%
Jun 11
A use of password hash with insufficient computational effort vulnerability [CWE-916] affecting FortiOS version 7.4.3 and below, 7.2 all versions, 7.0 all versions, 6.4 all…
Affected: 6.4.0 through 6.4.15; 7.0.0 through 7.0.15; 7.2.0 before 7.2.9; 7.4.0 before 7.4.4
CVE-2022-41327
4.4
0%
Jun 13
A cleartext transmission of sensitive information vulnerability [CWE-319] in Fortinet FortiOS version 7.2.0 through 7.2.4, 7.0.0 through 7.0.8, FortiProxy version 7.2.0 through…
Affected: 7.0.0 through 7.0.8; 7.2.0 through 7.2.4
CVE-2026-59840
4.3
0%
Jul 14
A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all…
Affected: 7.6.0 through 7.6.3; 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-2025-43892
4.3
0%
Jul 14
A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions…
Affected: 7.4.0 through 7.4.3; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19
CVE-2025-62826
4.3
0%
Jul 14
An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4…
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-2025-62675
4.3
0%
Jul 14
An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4…
Affected: 7.6.0 through 7.6.4; 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-2025-54822
4.3
0%
Oct 14
An improper authorization vulnerability [CWE-285] vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2.0 through 7.2.8, FortiOS 7.0.0 through 7.0.11, FortiProxy…
Affected: 7.0.0 before 7.2.9; 7.4.0 before 7.4.2
CVE-2025-25255
4.3
0%
Oct 14
An Improperly Implemented Security Check for Standard vulnerability [CWE-358] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiProxy 7.6.0 through 7.6.3, FortiProxy…
Affected: 7.6.0 before 7.6.4
CVE-2025-31514
4.3
0%
Oct 14
A insertion of sensitive information into log file vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiOS 7.0 all…
Affected: 7.6.0 through 7.6.2; 7.4.0 through 7.4.11; 7.2.0 through 7.2.13; 7.0.0 through 7.0.19; 6.4.0 through 6.4.16
CVE-2024-47569
4.3
0%
Oct 14
A insertion of sensitive information into sent data vulnerability in Fortinet FortiMail 7.4.0 through 7.4.2, FortiMail 7.2.0 through 7.2.6, FortiMail 7.0 all versions,…
Affected: 7.6.0; 7.4.0 through 7.4.4; 7.2.0 through 7.2.8; 7.0.0 through 7.0.15; 6.4.0 through 6.4.15; 6.2.0 through 6.2.17; +1 more
CVE-2025-25250
4.3
1%
Jun 10
An Exposure of Sensitive Information to an Unauthorized Actor vulnerability [CWE-200] vulnerability in Fortinet FortiOS 7.6.0, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2 all…
Affected: 7.6.0; 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-2023-46715
4.3
1%
Jan 14
An origin validation error [CWE-346] vulnerability in Fortinet FortiOS IPSec VPN version 7.4.0 through 7.4.1 and version 7.2.6 and below allows an authenticated IPSec VPN user…
Affected: 6.2.0 before 7.4.2
CVE-2024-33510
4.3
1%
Nov 12
An improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability [CWE-74] in FortiOS version 7.4.3 and below, version 7.2.8 and…
Affected: 7.0.0 before 7.2.9; 7.4.0 before 7.4.4
CVE-2024-23112
4.3
1%
Mar 12
An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiOS version 7.4.0 through 7.4.1, 7.2.0 through 7.2.6, 7.0.1 through 7.0.13, 6.4.7 through…
Affected: 6.4.7 through 6.4.14; 7.0.1 through 7.0.13; 7.2.0 through 7.2.6; 7.4.0 through 7.4.1
CVE-2023-33301
4.3
1%
Oct 10
An improper access control vulnerability in Fortinet FortiOS 7.2.0 - 7.2.4 and 7.4.0 allows an attacker to access a restricted resource from a non trusted host
Affected: 7.2.0 through 7.2.4; 7.4.0
CVE-2023-29178
4.3
1%
Jun 13
A access of uninitialized pointer vulnerability [CWE-824] vulnerability in Fortinet FortiOS 7.2.0 through 7.2.4, FortiOS 7.0.0 through 7.0.11, FortiOS 6.4 all versions, FortiOS…
Affected: 7.2.0 through 7.2.4; 7.0.0 through 7.0.11; 6.4.0 through 6.4.16; 6.2.0 through 6.2.17; 6.0.0 through 6.0.18
CVE-2022-42469
4.3
0%
Apr 11
A permissive list of allowed inputs vulnerability [CWE-183] in FortiGate version 7.2.3 and below, version 7.0.9 and below Policy-based NGFW Mode may allow an authenticated SSL-VPN…
Affected: 7.0.0 before 7.0.11; 7.2.0 before 7.2.4
CVE-2021-43074
4.3
0%
Feb 16
An improper verification of cryptographic signature vulnerability [CWE-347] in FortiWeb 6.4 all versions, 6.3.16 and below, 6.2 all versions, 6.1 all versions, 6.0 all versions;…
Affected: 6.0.0 before 6.4.9; 7.0.0 before 7.0.4
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