CVE-2026-3701H3C Magic B1 aspForm Edit_BasicSSID_5G buffer overflow

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-349647 | H3C Magic B1 aspForm Edit_BasicSSID_5G buffer overflow vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
• VDB-349647 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-requiredPermissions RequiredVDB Entry
• Submit #765771 | New H3C Technologies Co., Ltd. Magic B1 Magic B1<=100R004 Buffer Overflow third-party-advisoryThird Party AdvisoryVDB Entry
• https://github.com/saltedfisholdxu/vul/blob/main/Magic%20B1/6_b1-report.md exploitExploitThird Party Advisory