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Zywall Usg 100 vulnerabilitiesAnd the versions its exploited flaws hit.

Product1 known exploited0 versions
The short answer

Zywall Usg 100 is made by Zyxel. We track 2 published vulnerabilities listed under that exact name, across 0 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 31 May 2023. Zyxel lists newer releases under their own names, such as Zywall Usg 100 Firmware, so check those pages too.

Check your version

The most recent Zywall Usg 100 flaw added to the known-exploited list is CVE-2023-28771, on 31 May 2023. We keep watching the known-exploited list.

Other names

Is Zywall Usg 100 listed under other names? Yes.

Zyxel also lists Zywall Usg 100 under more specific names, such as Zywall Usg 100 Firmware. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.

Versions

Which versions of Zywall Usg 100 do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

Known exploited

Which Zywall Usg 100 vulnerabilities are being exploited?

1 flaw is 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.

  1. 9.8
    CVE-2023-28771CriticalKnown exploited
    Zyxel Multiple Firewalls OS Command Injection Vulnerability

    Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device.

    Chance of use>99%Known exploited since31 May 2023
Exploit likelihood

Which Zywall Usg 100 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.

50% or more10% to 49%Under 10%
  1. 0.5%
    CVE-2017-17550High

    ZyXEL ZyWALL USG 2.12 AQQ.2 and 3.30 AQQ.7 devices are affected by a CSRF vulnerability via a cgi-bin/zysh-cgi cmd action to add a user account.

    CVSS8.8Published10 Nov 2018
Precursor Intelligence

Running Zywall Usg 100? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

  1. Tell us what you runPick your software from a list, or let us work it out from your website.
  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
  4. Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
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FAQ

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We track 2 published vulnerabilities listed under the name Zywall Usg 100, across 0 versions. The most recent Zywall Usg 100 flaw added to the known-exploited list is CVE-2023-28771, on 31 May 2023.

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

Zyxel also lists Zywall Usg 100 under more specific names, such as Zywall Usg 100 Firmware. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.

Create a Precursor Intelligence account and track Zywall Usg 100. 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.

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