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7.4
H3C Magic B1: Unauthenticated Remote Code Execution
CVE-2026-3701
Summary
A security flaw in the H3C Magic B1 software allows an attacker to remotely execute malicious code. This could lead to unauthorized access and potentially allow the attacker to take control of the system. Users should update to the latest version as soon as possible.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| h3c | magic_b1_firmware | <= 100r004 | – |
Original title
A security vulnerability has been detected in H3C Magic B1 up to 100R004. Affected by this vulnerability is the function Edit_BasicSSID_5G of the file /goform/aspForm. Such manipulation of the argu...
Original description
A security vulnerability has been detected in H3C Magic B1 up to 100R004. Affected by this vulnerability is the function Edit_BasicSSID_5G of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attack can be executed 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.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
7.4
Vulnerability type
CWE-119
Buffer Overflow
CWE-120
Classic Buffer Overflow
Published: 8 Mar 2026 · Updated: 13 Mar 2026 · First seen: 8 Mar 2026