CVE-2022-0823

6.2 mediumEPSS 0.2%

Medium (6.2) in zyxel. EPSS 0.2% chance of exploitation in the next 30 days.

An 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.

Severity

CVSS 3.1

6.2 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE: CWE-203
Published: 2022-06-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

zyxel:gs1200-5_firmware
zyxel:gs1200-5hp_firmware
zyxel:gs1200-8_firmware
zyxel:gs1200-8hp_firmware

References

https://www.zyxel.com/support/Zyxel-security-advisory-for-password-guessing-vulnerability-of-GS1200-series-switches.shtml
https://www.zyxel.com/support/Zyxel-security-advisory-for-password-guessing-vulnerability-of-GS1200-series-switches.shtml

Check your stack JSON