High severity · published Oct 7, 2025
CVE-2025-11385
Tenda AC20 fast_setting_wifi_set sscanf buffer overflow
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The affected element is the function sscanf of the file /goform/fast_setting_wifi_set. The manipulation of the argument timeZone leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC20 · Tenda
16.03.08.0; 16.03.08.1; 16.03.08.2; 16.03.08.3; 16.03.08.4; 16.03.08.5; +7 more · source: vendor
AF
Ac20 Firmware · Tenda
16.03.08.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-11385
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-11385
Exploit
https://github.com/cymiao1978/cve/blob/main/11.md
Exploit
https://github.com/cymiao1978/cve/blob/main/11.md#poc
Permissions Required
https://vuldb.com/?ctiid.327312
Third Party Advisory
https://vuldb.com/?id.327312
Third Party Advisory
https://vuldb.com/?submit.664922
Product
https://www.tenda.com.cn/
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