CVE-2025-15356

A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The impacted element is the function sscanf of the file /goform/PowerSaveSet. The manipulation of the argument powerSavingEn/time/powerSaveDelay/ledCloseType leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may 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/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.md#poc	Exploit Third Party Advisory
https://github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflow	Exploit Third Party Advisory
https://vuldb.com/?ctiid.338742	Permissions Required VDB Entry
https://vuldb.com/?id.338742	Third Party Advisory VDB Entry
https://vuldb.com/?submit.726360	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac20_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-12-30 21:15

Updated : 2025-12-31 22:09

NVD link : CVE-2025-15356

Mitre link : CVE-2025-15356

CVE.ORG link : CVE-2025-15356

JSON object : View

Products Affected

tenda

ac20
ac20_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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