CVE-2025-15356HIGH 8.8EPSS p87.5%

CVE-2025-15356CVE-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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS3.45% probability of exploitation · percentile 87.5% · 2026-06-18T12:00:27Z
Published2025-12-30
Last modified2025-12-31

Underlying weaknesses· 2

CWE-119CWE-120

References

  1. https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.md#poc
  2. https://github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflow
  3. https://vuldb.com/?ctiid.338742
  4. https://vuldb.com/?id.338742
  5. https://vuldb.com/?submit.726360
  6. https://www.tenda.com.cn/

2

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessBuffer Copy without Checking Size of Input ('Classic Buffer Overflow')cwe-1200%live

Related by meaning· 6

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.