# FortiSASE vulnerabilities

> FortiSASE is made by Fortinet. We track 4 published vulnerabilities in it, across 32 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 9 September 2026. If you run FortiSASE, check your version against the exploited flaws below and patch those first.

Canonical page: https://www.precursorintelligence.com/product/fortinet/fortisase

## At a glance

- **Made by:** [Fortinet](https://www.precursorintelligence.com/vendors/fortinet)
- **Published vulnerabilities:** 4
- **Known to be exploited:** 1
- **Versions tracked:** 32
- **Most recently added to the known-exploited list:** [CVE-2025-25249](https://www.precursorintelligence.com/what-is/cve-2025-25249), 9 September 2026. We keep watching the list.

## Which versions of FortiSASE do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published.

- [CVE-2025-25249](https://www.precursorintelligence.com/what-is/cve-2025-25249) (Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability): 25.1.39, 25.1.51

## Which FortiSASE vulnerabilities are being exploited?

1 flaw is on the government list of vulnerabilities known to be exploited, newest first:

- [CVE-2025-25249](https://www.precursorintelligence.com/what-is/cve-2025-25249): Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability. High, CVSS 8.1, chance of use in 30 days 3.8%, known exploited since 9 September 2026.

## Which FortiSASE 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):

- [CVE-2025-25249](https://www.precursorintelligence.com/what-is/cve-2025-25249): 3.8%, High (CVSS 8.1), known exploited
- [CVE-2024-47569](https://www.precursorintelligence.com/what-is/cve-2024-47569): 0.5%, Medium (CVSS 4.3)
- [CVE-2025-31366](https://www.precursorintelligence.com/what-is/cve-2025-31366): 0.4%, Medium (CVSS 4.7)
- [CVE-2024-55599](https://www.precursorintelligence.com/what-is/cve-2024-55599): 0.4%, Medium (CVSS 5.3)
- [CVE-2025-47890](https://www.precursorintelligence.com/what-is/cve-2025-47890): 0.3%, Low (CVSS 2.6)

## Questions

### How many vulnerabilities does FortiSASE have?

We track 4 published vulnerabilities listed under the name FortiSASE, across 32 versions. The most recent FortiSASE flaw added to the known-exploited list is CVE-2025-25249, on 9 September 2026.

### Which FortiSASE vulnerabilities are being exploited?

1 is on the list of flaws known to be exploited. The most recently added is CVE-2025-25249.

### Which versions of FortiSASE do the exploited flaws affect?

Each flaw names its own versions, usually as ranges. The newest, CVE-2025-25249, affects 25.1.39, 25.1.51. The versions for every exploited flaw are listed on this page.

### How do I get alerts for FortiSASE?

Create a Precursor Intelligence account and track FortiSASE. 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.

## Running FortiSASE?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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