https://reddit.com/r/cybersecurity/comments/1tnaxpn/zte_rated_this_router_leak_35_low_nvd_rated_it_65/: ZTE rated this router leak 3.5 Low. NVD rated it 6.5 Medium. The impact explains why.
Published May 25, 2026
·Updated
Affected Software
1 affected component
ZTE ZXHN H168N=3.5
Frequently Asked Questions
1
What is the severity of CVE-2021-21735?
CVE-2021-21735 has a severity rating of 6.5 Medium according to the National Vulnerability Database.
2
What is CVE-2021-21735 related to?
CVE-2021-21735 is related to information disclosure vulnerabilities in the ZTE ZXHN H168N V3.5 router.
3
How do I fix CVE-2021-21735?
To fix CVE-2021-21735, it is recommended to update the router firmware to the latest version provided by ZTE.
4
What type of data is exposed in CVE-2021-21735?
CVE-2021-21735 exposes sensitive data such as PPPoE and WLAN credentials, which can be critical for network security.
5
Who is affected by CVE-2021-21735?
Users of the ZTE ZXHN H168N V3.5 router may be affected by CVE-2021-21735 due to the leak of sensitive configuration information.