CVE-2025-8170HIGH 8.8EPSS p58.0%

CVE-2025-8170CVE-2025-8170

Description

A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748_B20211015. This vulnerability affects the function tcpcheck_net of the file /router/meshSlaveDlfw of the component MQTT Packet Handler. The manipulation of the argument serverIp 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
EPSS0.99% probability of exploitation · percentile 58.0% · 2026-06-19T12:03:05Z
Published2025-07-25
Last modified2025-08-07

Underlying weaknesses· 2

CWE-119CWE-120

References

  1. https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md
  2. https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/9.md#poc
  3. https://vuldb.com/?ctiid.317584
  4. https://vuldb.com/?id.317584
  5. https://vuldb.com/?submit.620834
  6. https://www.totolink.net/

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

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