CVE-2025-70802 Hardcoded credentials in n/a

High 8.4 Published 10 Mar 2026 Updated 12 Mar 2026

Attackers can log in as root using hardcoded credentials in the Tenda router firmware, gaining full administrative control.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-70802?

CVE-2025-70802 is a high-severity vulnerability in n/a, published on 10 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Tenda G1V3.1si V16.01.7.8 Firmware V16.01.7.8 was discovered to contain a hardcoded password vulnerability in /etc_ro/shadow, which allows attackers to log in as root.

Weakness: CWE-259

Which versions are affected by CVE-2025-70802?

It affects 1 product.

Products include Tenda G1 Firmware.

How do I fix CVE-2025-70802?

No fix has been published for CVE-2025-70802 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-70802 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70802 exists.

Sources

Also known as GHSA-8x29-qfmf-3r57.