Wednesday 4 November
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Zyxel patches zero-day exploited to compromise nearly 1,000 GS1900 network switches

Severity
High
Sources
1

has fixed a hidden flaw in some of its network switches, the devices that connect computers on a network. Attackers used the flaw to take over close to 1,000 of them worldwide and steal configuration files and login details.

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What to do

  1. Apply Zyxel's patch to any GS1900 series network switches you run.
  2. Rotate credentials and review configuration files on switches that may have been exposed.
  3. Check whether GS1900 switches are reachable from the internet and restrict access where possible.

Written by AI from the sources, checked against them

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  1. Wed 4 NovemberZyxel fixes zero-day exploited to hack nearly 1,000 network switchesBleepingComputer

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