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Description

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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.

Es geht hierbei um die Funktion check_upload_file der Komponente Firmware Update Handler. Durch Manipulieren mit unbekannten Daten kann eine insufficient verification of data authenticity-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk angegangen werden. Die Komplexität eines Angriffs ist eher hoch. Sie ist schwierig ausnutzbar. Der Exploit steht zur öffentlichen Verfügung.

PUBLISHED Reserved 2025-08-13 | Published 2025-08-14 | Updated 2025-08-14 | Assigner VulDB




HIGH: 7.5CVSS: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
MEDIUM: 6.6CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
MEDIUM: 6.6CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
6.8AV:N/AC:H/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Insufficient Verification of Data Authenticity

Product status

16.01.7.8(3660)
affected

Timeline

2025-08-13:Advisory disclosed
2025-08-13:VulDB entry created
2025-08-13:VulDB entry last update

Credits

IOT_Res (VulDB User) reporter

References

vuldb.com/?id.319976 (VDB-319976 | Tenda G1 Firmware Update check_upload_file data authenticity) vdb-entry technical-description

vuldb.com/?ctiid.319976 (VDB-319976 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.628605 (Submit #628605 | Tenda G1 V16.01.7.8(3660) CWE-327 Use of a Broken or Risky Cryptographic Algorithm) third-party-advisory

vuldb.com/?submit.628606 (Submit #628606 | Tenda G1 V16.01.7.8(3660) CWE-287 Improper Authentication (Duplicate)) third-party-advisory

github.com/...IOT_Firmware_Update/blob/main/Tenda/G1_Inte.md patch

github.com/...IOT_Firmware_Update/blob/main/Tenda/G1_Auth.md exploit patch

www.tenda.com.cn/ product

cve.org (CVE-2025-8980)

nvd.nist.gov (CVE-2025-8980)

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