FortiMail vulnerabilitiesAnd the versions its exploited flaws hit.
FortiMail is made by Fortinet. We track 38 published vulnerabilities in it, across 125 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 1 October 2026. If you run FortiMail, check your version against the exploited flaws below and patch those first.
The most recent FortiMail flaw added to the known-exploited list is CVE-2026-104286, on 1 October 2026. We keep watching the known-exploited list.
Which versions of FortiMail do the exploited flaws hit?
Each exploited flaw lists the versions it affects, usually as ranges. "7.0.0 to before 7.0.9" means from 7.0.0 up to, but not including, 7.0.9. Find your version, then patch.
- CVE-2026-104286Exploited list, 1 Oct 2026
Fortinet FortiMail Path Traversal Vulnerability
7.2.0 to 7.4.87.6.0 to 7.6.68.0.0 to 8.0.1 - CVE-2025-32756Exploited list, 14 May 2025
Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability
7.0.0 to before 7.0.97.2.0 to before 7.2.87.4.0 to before 7.4.57.6.0 to before 7.6.3
Which FortiMail vulnerabilities are being exploited?
2 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 FortiMail Path Traversal Vulnerability
Fortinet FortiMail contains a path traversal and an improper neutralization of NULL byte or NULL character vulnerability that may allow an unauthenticated attacker to write arbitrary files on the underlying system...
- 9.8Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability
Fortinet FortiFone, FortiVoice, FortiNDR and FortiMail contain a stack-based overflow vulnerability that may allow a remote unauthenticated attacker to execute arbitrary code or commands via crafted HTTP requests.
Which FortiMail 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.
- 78%CVE-2020-9294Critical
An improper authentication vulnerability in FortiMail 5.4.10, 6.0.7, 6.2.2 and earlier and FortiVoiceEntreprise 6.0.0 and 6.0.1 may allow a remote unauthenticated attacker to access the system as a legitimate user by...
- 31%
A stack-based buffer overflow vulnerability [CWE-121] in Fortinet FortiVoice versions 7.2.0, 7.0.0 through 7.0.6, 6.4.0 through 6.4.10, FortiRecorder versions 7.2.0 through 7.2.3, 7.0.0 through 7.0.5, 6.4.0 through...
- 13%CVE-2021-43062Medium
A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiMail version 7.0.1 and 7.0.0, version 6.4.5 and below, version 6.3.7 and below, version 6.0.11 and below allows...
- 2.4%CVE-2013-1471Medium
Multiple cross-site scripting (XSS) vulnerabilities in admin/FEAdmin.html in Fortinet FortiMail before 4.3.4 on FortiMail Identity-Based Encryption (IBE) appliances allow user-assisted remote attackers to inject...
- 2.2%
An 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...
- 2.1%CVE-2017-7732Medium
A reflected Cross-Site Scripting (XSS) vulnerability in Fortinet FortiMail 5.1 and earlier, 5.2.0 through 5.2.9, and 5.3.0 through 5.3.9 customized pre-authentication webmail login page allows attacker to inject...
- 1.8%CVE-2022-29056Medium
A improper restriction of excessive authentication attempts vulnerability [CWE-307] in Fortinet FortiMail version 6.4.0, version 6.2.0 through 6.2.4 and before 6.0.9 allows a remote unauthenticated attacker to...
- 1.5%CVE-2021-36166Critical
An improper authentication vulnerability in FortiMail before 7.0.1 may allow a remote attacker to efficiently guess one administrative account's authentication token by means of the observation of certain system's...
- 1.4%CVE-2021-24007Critical
Multiple improper neutralization of special elements of SQL commands vulnerabilities in FortiMail before 6.4.4 may allow a non-authenticated attacker to execute unauthorized code or commands via specifically crafted...
- 1.3%CVE-2021-26090High
A missing release of memory after its effective lifetime vulnerability in the Webmail of FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6 may allow an unauthenticated remote attacker to exhaust available memory...
Running FortiMail? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
Fortinet FortiMail contains a path traversal and an improper neutralization of NULL byte or NULL character vulnerability that may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.
- Matched to
- FortiMail 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 38 published vulnerabilities listed under the name FortiMail, across 125 versions. The most recent FortiMail flaw added to the known-exploited list is CVE-2026-104286, on 1 October 2026.
2 are on the list of flaws known to be exploited. The most recently added are CVE-2026-104286 and CVE-2025-32756.
Each flaw names its own versions, usually as ranges. The newest, CVE-2026-104286, affects 7.2.0 to 7.4.8, 7.6.0 to 7.6.6, 8.0.0 to 8.0.1. The versions for every exploited flaw are listed on this page.
Create a Precursor Intelligence account and track FortiMail. 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.