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CVE-2021-35036

MediumPublished

A cleartext storage of information vulnerability in the Zyxel VMG3625-T50B firmware version V5.50(ABTL.0)b2k could allow an authenticated attacker to obtain...

Published: Mar 1, 2022
Updated: Aug 4, 2024
Assigning CNA: Zyxel
Evidence observed: Aug 8, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

0.5%

Low · next 30 days

Percentile: 41.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A cleartext storage of information vulnerability in the Zyxel VMG3625-T50B firmware version V5.50(ABTL.0)b2k could allow an authenticated attacker to obtain sensitive information from the configuration file.

Sources

zyxel-cve-2021-35036-super-admin-password-leakResearch
Zyxel super-admin credential exposure write-up across CPE/ONT/LTE/5G firmware, with an adapted VMG8825-B50B genpass lab.

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