CVE-2026-9393CWE-119CWE-120

H3C Magic B0 aspForm Edit_BasicSSID_5G buffer overflow

High · published May 24, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
56.3
In the wild
Unconfirmed
What it is

A vulnerability was found in H3C Magic B0 up to 100R002. This affects the function Edit_BasicSSID_5G of the file /goform/aspForm. Performing a manipulation of the argument param results in buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.00805 · 56.3th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-05-24T19:00Z
EPSS history
Timeline
  • 24 MAY 19:00Z
    H3C Magic B0 aspForm Edit_BasicSSID_5G buffer overflow
    cvelistv5