CVE-2025-9088CRITICAL 9.8EPSS p50.5%

CVE-2025-9088CVE-2025-9088

Description

A vulnerability was found in Tenda AC20 16.03.08.12. This vulnerability affects the function save_virtualser_data of the file /goform/formSetVirtualSer. The manipulation of the argument list leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.76% probability of exploitation · percentile 50.5% · 2026-06-19T12:03:05Z
Published2025-08-16
Last modified2025-08-21

Underlying weaknesses· 3

CWE-119CWE-121CWE-787

References

  1. https://github.com/ZZ2266/.github.io/tree/main/AC20/formSetVirtualSer
  2. https://github.com/ZZ2266/.github.io/tree/main/AC20/formSetVirtualSer#poc-python-exploit-script
  3. https://vuldb.com/?ctiid.320356
  4. https://vuldb.com/?id.320356
  5. https://vuldb.com/?submit.632038
  6. https://www.tenda.com.cn/

3

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessStack-based Buffer Overflowcwe-1210%live
WeaknessOut-of-bounds Writecwe-7870%live

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