# Zywall Usg 310 Firmware vulnerabilities

> Zywall Usg 310 Firmware is made by Zyxel. We track 1 published vulnerability in it, across 3 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 31 May 2023. If you run Zywall Usg 310 Firmware, check your version against the exploited flaws below and patch those first.

Canonical page: https://www.precursorintelligence.com/product/zyxel/zywall_usg_310_firmware

## At a glance

- **Made by:** [Zyxel](https://www.precursorintelligence.com/vendors/zyxel)
- **Published vulnerabilities:** 1
- **Known to be exploited:** 1
- **Versions tracked:** 3
- **Most recently added to the known-exploited list:** [CVE-2023-28771](https://www.precursorintelligence.com/what-is/cve-2023-28771), 31 May 2023. We keep watching the list.

## Which versions of Zywall Usg 310 Firmware do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published. "4.60 to before 4.73" means from 4.60 up to, but not including, 4.73.

- [CVE-2023-28771](https://www.precursorintelligence.com/what-is/cve-2023-28771) (Zyxel Multiple Firewalls OS Command Injection Vulnerability): 4.60 to before 4.73, 4.73

## Which Zywall Usg 310 Firmware vulnerabilities are being exploited?

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

- [CVE-2023-28771](https://www.precursorintelligence.com/what-is/cve-2023-28771): Zyxel Multiple Firewalls OS Command Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 31 May 2023.

## Questions

### How many vulnerabilities does Zywall Usg 310 Firmware have?

We track 1 published vulnerability listed under the name Zywall Usg 310 Firmware, across 3 versions. The most recent Zywall Usg 310 Firmware flaw added to the known-exploited list is CVE-2023-28771, on 31 May 2023.

### Which Zywall Usg 310 Firmware vulnerabilities are being exploited?

1 is on the list of flaws known to be exploited. The most recently added is CVE-2023-28771.

### Which versions of Zywall Usg 310 Firmware do the exploited flaws affect?

Each flaw names its own versions, usually as ranges. The newest, CVE-2023-28771, affects 4.60 to before 4.73, 4.73. The versions for every exploited flaw are listed on this page.

### How do I get alerts for Zywall Usg 310 Firmware?

Create a Precursor Intelligence account and track Zywall Usg 310 Firmware. 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 Zywall Usg 310 Firmware?

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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