High severity · published Sep 9, 2025
CVE-2025-10120
Tenda AC20 GetParentControlInfo strcpy buffer overflow
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is the function strcpy of the file /goform/GetParentControlInfo. The manipulation of the argument mac results in buffer overflow. The attack may be performed from remote. The exploit is now 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 58% 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
through 16.03.08.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-10120
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-10120
Exploit
https://github.com/cymiao1978/cve/blob/main/4.md
Exploit
https://github.com/cymiao1978/cve/blob/main/4.md#poc
Permissions Required
https://vuldb.com/?ctiid.323089
Third Party Advisory
https://vuldb.com/?id.323089
Third Party Advisory
https://vuldb.com/?submit.645680
Product
https://www.tenda.com.cn/
More from AC20
9.8
CVE-2025-9791
Tenda AC20 fromAdvSetMacMtuWan stack-based overflow
9.8
CVE-2025-9090
Tenda AC20 Telnet Service telnet websFormDefine command injection
9.8
CVE-2025-9089
Tenda AC20 SetIpMacBind sub_48E628 stack-based overflow
9.8
CVE-2025-9088
Tenda AC20 formSetVirtualSer save_virtualser_data stack-based overflow
9.8
CVE-2025-9087
Tenda AC20 SetNetControlList Endpoint set_qosMib_list stack-based overflow