CVE-2025-8980: Tenda G1 Firmware Update check_upload_file data authenticity

Severity: medium (CVSS 6.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-14 · updated 2026-06-17
Weakness: CWE-345

Description

A vulnerability has been found in Tenda G1 16.01.7.8(3660). Affected by this issue is the function check_upload_file of the component Firmware Update Handler. The manipulation leads to insufficient verification of data authenticity. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

Affected products

Tenda G1: 16.01.7.8(3660)

References

https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Tenda/G1_Auth.md
https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Tenda/G1_Inte.md
https://vuldb.com/?ctiid.319976
https://vuldb.com/?id.319976
https://vuldb.com/?submit.628605
https://vuldb.com/?submit.628606
https://www.tenda.com.cn/

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