# Hidden Authentication Backdoor Found in Tenda Firmware Versions

Security researchers have discovered a hidden authentication backdoor in multiple versions of Tenda router firmware. The flaw allows attackers to bypass login credentials and gain administrative control of affected devices. This vulnerability puts millions of users at risk of remote hijacking and data exposure until patched.

**Importance:** 4/5

## Sources

### Technology
- [Hacker News](https://kb.cert.org/vuls/id/213560) — Wed, 08 Jul 2026 00:08:51 +0000