CVE-2021-21735 write-up: ZTE ZXHN H168N V3.5 wizard-page information leak, firmware routing flaw, and the path from exposed PPPoE/WLAN data to full admin compromise.
bug-bounty cve zte vulnerability-research embedded-security firmware-security router-security cve-2021-21735 zxhn-h168n
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Updated
May 20, 2026 - HTML