CVE-2026-9443HIGH 8.8EPSS p50.1%

CVE-2026-9443CVE-2026-9443

Description

A security vulnerability has been detected in Edimax BR-6478AC 1.23. This vulnerability affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. The manipulation of the argument L2TPUserName leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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
EPSS0.75% probability of exploitation · percentile 50.1% · 2026-06-19T12:03:05Z
Published2026-05-25
Last modified2026-05-26

Underlying weaknesses· 2

CWE-119CWE-120

References

  1. https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formL2TPSetup-34b53a41781f809e9c30c1260cc5d92e?source=copy_link
  2. https://vuldb.com/submit/818452
  3. https://vuldb.com/vuln/365424
  4. https://vuldb.com/vuln/365424/cti

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

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-8775
CVE
CVE-2026-9380
CVE
CVE-2026-8776
CVE
CVE-2026-9294
CVE
CVE-2026-10165
CVE
CVE-2026-10163
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.