CVE-2025-15356

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

8.8 /10

CVSS v3 : HIGH

V3 Legend

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

V2 Legend

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

31 Dec 2025, 22:09

Type Values Removed Values Added
First Time Tenda
Tenda ac20
Tenda ac20 Firmware
CPE cpe:2.3:o:tenda:ac20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:*
References () https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.md#poc - () https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.md#poc - Exploit, Third Party Advisory
References () https://github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflow - () https://github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflow - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.338742 - () https://vuldb.com/?ctiid.338742 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.338742 - () https://vuldb.com/?id.338742 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.726360 - () https://vuldb.com/?submit.726360 - Third Party Advisory, VDB Entry
References () https://www.tenda.com.cn/ - () https://www.tenda.com.cn/ - Product

30 Dec 2025, 21:15

Type Values Removed Values Added
New CVE
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_firmware
  • ac20
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')