# Trusted Firmware-M vulnerabilities

> Trusted Firmware-M is made by Arm. We track 4 published vulnerabilities in it, across 15 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 3 November 2021. If you run Trusted Firmware-M, check your version against the exploited flaws below and patch those first.

Canonical page: https://www.precursorintelligence.com/product/arm/trusted_firmware-m

## At a glance

- **Made by:** [Arm](https://www.precursorintelligence.com/vendors/arm)
- **Published vulnerabilities:** 4
- **Known to be exploited:** 1
- **Versions tracked:** 15
- **Most recently added to the known-exploited list:** [CVE-2021-27562](https://www.precursorintelligence.com/what-is/cve-2021-27562), 3 November 2021. We keep watching the list.

## Which versions of Trusted Firmware-M do the exploited flaws hit?

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

- [CVE-2021-27562](https://www.precursorintelligence.com/what-is/cve-2021-27562) (Arm Trusted Firmware Out-of-Bounds Write Vulnerability): up to 1.2.0

## Which Trusted Firmware-M vulnerabilities are being exploited?

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

- [CVE-2021-27562](https://www.precursorintelligence.com/what-is/cve-2021-27562): Arm Trusted Firmware Out-of-Bounds Write Vulnerability. Medium, CVSS 5.5, chance of use in 30 days 3.1%, known exploited since 3 November 2021.

## Which Trusted Firmware-M 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-2021-27562](https://www.precursorintelligence.com/what-is/cve-2021-27562): 3.1%, Medium (CVSS 5.5), known exploited
- [CVE-2021-43619](https://www.precursorintelligence.com/what-is/cve-2021-43619): 0.4%, High (CVSS 7.8)
- [CVE-2023-51712](https://www.precursorintelligence.com/what-is/cve-2023-51712): 0.3%, Medium (CVSS 4.7)

## Questions

### How many vulnerabilities does Trusted Firmware-M have?

We track 4 published vulnerabilities listed under the name Trusted Firmware-M, across 15 versions. The most recent Trusted Firmware-M flaw added to the known-exploited list is CVE-2021-27562, on 3 November 2021.

### Which Trusted Firmware-M vulnerabilities are being exploited?

1 is on the list of flaws known to be exploited. The most recently added is CVE-2021-27562.

### Which versions of Trusted Firmware-M do the exploited flaws affect?

Each flaw names its own versions, usually as ranges. The newest, CVE-2021-27562, affects up to 1.2.0. The versions for every exploited flaw are listed on this page.

### How do I get alerts for Trusted Firmware-M?

Create a Precursor Intelligence account and track Trusted Firmware-M. 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 Trusted Firmware-M?

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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