Earlier or improperly configured ZTE models have occasionally been found to have hidden SSH or web credentials that allow attackers to gain access to the system, overriding user-defined passwords. 3. Information Disclosure
While not a "software bug" per se, many ISPs never change the manufacturer default passwords. However, the ZTE F680 has a known hidden backdoor: the user account with password Zte521 (or variations like root / Zte521@hn ). These accounts bypass the standard login lockout policies, making brute-forcing trivial. zte f680 exploit
by sending crafted POST requests with specific checksum data. Stored Cross-Site Scripting (XSS) (CVE-2022-23136) Description zte f680 exploit