CVE-2026-6563HIGH 8.8EPSS p37.7%

CVE-2026-6563CVE-2026-6563

Description

A vulnerability has been found in H3C Magic B1 up to 100R004. The affected element is the function SetAPWifiorLedInfoById of the file /goform/aspForm. The manipulation of the argument param leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public 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
EPSS0.48% probability of exploitation · percentile 37.7% · 2026-06-19T12:03:05Z
Published2026-04-19
Last modified2026-04-22

Underlying weaknesses· 2

CWE-119CWE-120

References

  1. https://github.com/K4ptor/H3C-routers-vulnerability/
  2. https://vuldb.com/submit/789531
  3. https://vuldb.com/vuln/358200
  4. https://vuldb.com/vuln/358200/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

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