Thursday 5 November
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Zyxel GS1900 switches remain exploitable after earlier patch for zero-day

Severity
Critical
Sources
1

Some network switches were still open to a known attack even after the company released an earlier fix. The flaw lets anyone who can reach the switch's web settings page run commands on it without logging in. Zyxel has released new firmware for 10 affected models that closes the hole.

Like I’m new · Written by AI from 1 source · Wrong?

What to do

  1. Install the new firmware Zyxel has released for the affected GS1900 models.
  2. Do not rely on the earlier fix, as it does not block the exploit.
  3. Check whether any Zyxel GS1900 switches are in use on your network.

Written by AI from the sources, checked against them

Full story timeline · 1 update

  1. Thu 5 NovemberZyxel GS1900 Patch Fails to Block Zero-Day Exploit Allowing Root Command ExecutionThe Hacker News

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