FortiProxy vulnerabilitiesAnd the versions its exploited flaws hit.
FortiProxy is made by Fortinet. We track 105 published vulnerabilities in it, across 101 versions. 11 of them are on the list of flaws known to be exploited, the newest added on 16 December 2025. If you run FortiProxy, check your version against the exploited flaws below and patch those first.
The most recent FortiProxy flaw added to the known-exploited list is CVE-2025-59718, on 16 December 2025. We keep watching the known-exploited list.
Which versions of FortiProxy do the exploited flaws hit?
Each exploited flaw lists the versions it affects, usually as ranges. "7.0.0 to before 7.0.20" means from 7.0.0 up to, but not including, 7.0.20. Find your version, then patch.
- CVE-2025-59718Exploited list, 16 Dec 2025
Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability
7.0.0 to 7.0.217.2.0 to 7.2.147.4.0 to 7.4.107.6.0 to 7.6.3 - CVE-2025-24472Exploited list, 18 Mar 2025
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
7.0.0 to before 7.0.207.2.0 to before 7.2.13 - CVE-2024-55591Exploited list, 14 Jan 2025
Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
7.0.0 to before 7.0.207.2.0 to before 7.2.13 - CVE-2024-23113Exploited list, 9 Oct 2024
Fortinet Multiple Products Format String Vulnerability
7.0.0 to 7.0.147.2.0 to 7.2.87.4.0 to 7.4.2 - CVE-2024-21762Exploited list, 9 Feb 2024
Fortinet FortiOS Out-of-Bound Write Vulnerability
1.0.0 to before 2.0.147.0.0 to before 7.0.157.2.0 to before 7.2.97.4.0 to before 7.4.3 - CVE-2023-27997Exploited list, 13 Jun 2023
Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability
1.1.0 to 1.1.61.2.0 to 1.2.132.0.0 to 2.0.127.0.0 to 7.0.97.2.0 to 7.2.3 - CVE-2022-42475Exploited list, 13 Dec 2022
Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
1.0.0 to 1.0.71.1.0 to 1.1.61.2.0 to 1.2.132.0.0 to before 2.0.127.0.0 to before 7.0.87.2.0 to before 7.2.2 - CVE-2022-40684Exploited list, 11 Oct 2022
Fortinet Multiple Products Authentication Bypass Vulnerability
7.0.0 to before 7.0.77.2.0 - CVE-2018-13383Exploited list, 10 Jan 2022
Fortinet FortiOS and FortiProxy Out-of-bounds Write
before 1.2.92.0.0 - CVE-2018-13382Exploited list, 10 Jan 2022
Fortinet FortiOS and FortiProxy Improper Authorization
before 1.2.92.0.0 - CVE-2018-13379Exploited list, 3 Nov 2021
Fortinet FortiOS SSL VPN Path Traversal Vulnerability
before 1.2.92.0.0
Which FortiProxy vulnerabilities are being exploited?
11 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 9.8Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability
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...
- 8.1Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that allows a remote attacker to gain super-admin privileges via crafted CSF proxy requests.
- 9.8Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability
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.
- 9.8Fortinet Multiple Products Format String Vulnerability
Fortinet FortiOS, FortiPAM, FortiProxy, and FortiWeb contain a format string vulnerability that allows a remote, unauthenticated attacker to execute arbitrary code or commands via specially crafted requests.
- 9.8Fortinet FortiOS Out-of-Bound Write Vulnerability
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.
- 9.8Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability
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.
- 9.8Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability
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...
- 9.8Fortinet Multiple Products Authentication Bypass Vulnerability
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...
Which FortiProxy flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
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...
- >99%
An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6 and...
- >99%
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through...
- 94%
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote...
- 86%
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version...
- 83%
A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy versions 7.4.0 through...
- 82%
An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 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...
- 68%
A 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...
- 62%CVE-2018-13380Medium
A Cross-site Scripting (XSS) vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.7, 5.4.0 to 5.4.12, 5.2 and below and Fortinet FortiProxy 2.0.0, 1.2.8 and below under SSL VPN web portal allows attacker to...
- 62%
A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through...
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1 flaw being exploited affects software Acme tracks
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.
- Matched to
- FortiProxy on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 105 published vulnerabilities listed under the name FortiProxy, across 101 versions. The most recent FortiProxy flaw added to the known-exploited list is CVE-2025-59718, on 16 December 2025.
11 are on the list of flaws known to be exploited. The most recently added are CVE-2025-59718, CVE-2025-24472 and CVE-2024-55591.
Each flaw names its own versions, usually as ranges. The newest, CVE-2025-59718, affects 7.0.0 to 7.0.21, 7.2.0 to 7.2.14, 7.4.0 to 7.4.10, 7.6.0 to 7.6.3. The versions for every exploited flaw are listed on this page.
Create a Precursor Intelligence account and track FortiProxy. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.