Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tenda | Ac20 Firmware | >= 16.03.08.0, <= 16.03.08.12 |
| Tenda | Ac20 | - |
Related Weaknesses (CWE)
References
- https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.mdExploitThird Party Advisory
- https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md#3-ExploitThird Party Advisory
- https://vuldb.com/?ctiid.319902Permissions RequiredVDB Entry
- https://vuldb.com/?id.319902Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.631829Third Party AdvisoryVDB Entry
- https://www.tenda.com.cn/Product
- https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.mdExploitThird Party Advisory
FAQ
What is CVE-2025-8939?
CVE-2025-8939 is a vulnerability with a CVSS score of 8.8 (HIGH). 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. ...
How severe is CVE-2025-8939?
CVE-2025-8939 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-8939?
Check the references section above for vendor advisories and patch information. Affected products include: Tenda Ac20 Firmware, Tenda Ac20.