https://reddit.com/r/netsec/comments/1tnbcp1/cve202121735_zte_h168n_wizard_whitelist_exposed/: CVE-2021-21735: ZTE H168N wizard whitelist exposed PPPoE and WLAN secrets pre-auth
Published May 25, 2026
·Updated
Affected Software
1 affected component
ZTE ZXHN H168N=V3.5
Frequently Asked Questions
1
What is the severity of CVE-2021-21735?
CVE-2021-21735 is classified as an information disclosure vulnerability due to unauthorized access to sensitive data.
2
How do I fix CVE-2021-21735?
To mitigate CVE-2021-21735, ensure that the firmware for the ZTE ZXHN H168N is updated to the latest version provided by the manufacturer.
3
What systems are affected by CVE-2021-21735?
CVE-2021-21735 specifically affects the ZTE ZXHN H168N V3.5 router.
4
What data is exposed in CVE-2021-21735?
CVE-2021-21735 exposes sensitive PPPoE and WLAN configuration details that should only be accessible after authentication.
5
Is CVE-2021-21735 being actively exploited?
While there are reports of the vulnerability, you should monitor for any indications of exploitation on your network.