Unrated severityNVD Advisory· Published Dec 30, 2025· Updated Feb 24, 2026
Tenda AC20 PowerSaveSet sscanf buffer overflow
CVE-2025-15356
Description
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.
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.mdmitrebroken-linkexploit
- github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflowmitrebroken-linkexploit
- vuldb.commitrethird-party-advisory
- vuldb.commitresignaturepermissions-required
- vuldb.commitrevdb-entrytechnical-description
- www.tenda.com.cnmitreproduct
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