CVE-2025-10838

A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md	Exploit Third Party Advisory
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md#poc	Exploit Third Party Advisory
https://vuldb.com/?ctiid.325200	Permissions Required VDB Entry
https://vuldb.com/?id.325200	Third Party Advisory VDB Entry
https://vuldb.com/?submit.657126	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:*

History

11 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad fue identificada en Tenda AC21 16.03.08.16. El elemento afectado es la función sub_45BB10 del archivo /goform/WifiExtraSet. La manipulación del argumento wpapsk_crypto conduce a desbordamiento de búfer. Es posible iniciar el ataque remotamente. El exploit está disponible públicamente y podría ser utilizado.

Information

Published : 2025-09-23 05:15

Updated : 2026-10-11 20:10

NVD link : CVE-2025-10838

Mitre link : CVE-2025-10838

CVE.ORG link : CVE-2025-10838

JSON object : View

Products Affected

tenda

ac21
ac21_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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