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Vulnerability record · CVE-2025-8980 · published 14 August 2025

CVE-2025-8980: Tenda g1 firmware insufficient verification of data authenticity vulnerability

Tenda · G1 Firmware

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.

6.6 CVSS 4.0 Medium EPSS 0.35% · top 73.6% CWE-345 · Insufficient verification of data authenticity
6.6CVSS 4.0 base score, v2 6.8
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Tenda/G1_Auth.md Third Party Advisory
https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Tenda/G1_Inte.md Third Party Advisory
https://vuldb.com/?ctiid.319976 Permissions Required
https://vuldb.com/?id.319976 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.628605 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.628606 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-27706Tenda g1 firmware classic buffer overflow vulnerabilityBuffer Overflow in Tenda G1 and G3 routers with firmware version V15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted…EPSS 2.8%9.8CVE-2021-27707Tenda g1 firmware classic buffer overflow vulnerabilityBuffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/…EPSS 2.8%9.8CVE-2021-27705Tenda g1 firmware classic buffer overflow vulnerabilityBuffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/…EPSS 2.9%8.4CVE-2025-70802Tenda g1 firmware hard-coded password vulnerabilityTenda 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 …EPSS 0.18%7.8CVE-2023-38831WinRAR ZIP archive spoofing leads to arbitrary code executionWinRAR before 6.23 mishandles ZIP archives that contain a benign file and a folder with the same name, causing the folder's contents to be processed …KEVEPSS 100%analysed9.8CVE-2022-26871Trend Micro Apex Central unauthenticated arbitrary file uploadTrend Micro Apex Central (and Apex One) contains an arbitrary file upload flaw caused by insufficient verification of data authenticity (CWE-345). An…KEVEPSS 19%analysed

Source: NIST National Vulnerability Database (record CVE-2025-8980), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.