CVE: CVE-2022-0823
Summary
Zyxel is aware that GS1200 series switches are vulnerable to password-guessing attacks. Users are advised to install the applicable updates for optimal protection.
What is vulnerability?
Improper control of interaction frequency vulnerability in Zyxel GS1200 series switches could allow a local attacker to guess the password by using a timing side-channel attack.
What versions are vulnerable—and what should you do?
After a thorough investigation, we’ve identified the vulnerable products that are within their vulnerability support period and released hotfixes and will release patches to address the issue, as shown in the table below.
|
Affected model |
Patch availability |
|
|
Hotfix |
Standard firmware |
|
|
GS1200-5 |
V2.00(ABKM.2) in Nov. 2022 |
|
|
GS1200-5HP |
V2.00(ABKN.2) in Nov. 2022 |
|
|
GS1200-8 |
V2.00(ABME.2) in Nov. 2022 |
|
|
GS1200-8HP |
V2.00(ABMF.2) in Nov. 2022 |
|
Got a question?
Feel free to be in touch with the Support Team.
Acknowledgment
Thanks to Lars Haulin for reporting the issue to us.
Revision history
2022-06-07: Initial release
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