CVE-2026-6581HIGH 8.8EPSS p35.4%

CVE-2026-6581CVE-2026-6581

Description

A vulnerability was detected in H3C Magic B1 up to 100R004. Affected by this vulnerability is the function SetMobileAPInfoById of the file /goform/aspForm. Performing a manipulation of the argument param results in buffer overflow. Remote exploitation of the attack is possible. The exploit is now 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
EPSS0.45% probability of exploitation · percentile 35.4% · 2026-06-19T12:03:05Z
Published2026-04-19
Last modified2026-04-22

Underlying weaknesses· 2

CWE-119CWE-120

References

  1. https://github.com/hmKunlun/H3Cc/blob/main/h3c.md
  2. https://vuldb.com/submit/790977
  3. https://vuldb.com/vuln/358216
  4. https://vuldb.com/vuln/358216/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.