CVE-2025-8939

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-8939
A vulnerability was determined in Tenda AC20 up to 16.03.08.12. Affected is an unknown function of the file /goform/WifiGuestSet. The manipulation of the argument shareSpeed leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
CVSS

No CVSS.

References
Link Resource
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md Exploit Third Party Advisory
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md#3-poc Exploit Third Party Advisory
https://vuldb.com/?ctiid.319902 Permissions Required VDB Entry
https://vuldb.com/?id.319902 Third Party Advisory VDB Entry
https://vuldb.com/?submit.631829 Third Party Advisory VDB Entry
https://www.tenda.com.cn/ Product
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tenda:ac20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:*
History

19 Aug 2025, 18:35

Type Values Removed Values Added
References () https://www.tenda.com.cn/ - () https://www.tenda.com.cn/ - Product
References () https://vuldb.com/?submit.631829 - () https://vuldb.com/?submit.631829 - Third Party Advisory, VDB Entry
References () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md - () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.319902 - () https://vuldb.com/?ctiid.319902 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.319902 - () https://vuldb.com/?id.319902 - Third Party Advisory, VDB Entry
References () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md#3-poc - () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md#3-poc - Exploit, Third Party Advisory
CPE cpe:2.3:o:tenda:ac20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:*
First Time Tenda ac20 Firmware
Tenda ac20
Tenda

15 Aug 2025, 13:15

Type Values Removed Values Added
CWE CWE-120
CWE-119
CVSS v2 : unknown
v3 : 8.8 		v2 : unknown
v3 : unknown

14 Aug 2025, 06:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-08-14 06:15

Updated : 2025-08-19 18:35

NVD link : CVE-2025-8939

Mitre link : CVE-2025-8939

JSON object : View

Products Affected

tenda

  • ac20_firmware
  • ac20
CWE

No CWE.