CVE-2026-6563H3C Magic B1 aspForm SetAPWifiorLedInfoById buffer overflow

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.

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-358200 | H3C Magic B1 aspForm SetAPWifiorLedInfoById buffer overflow vdb-entrytechnical-description
• VDB-358200 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• Submit #789531 | New H3C Technologies Co., Ltd. Magic B1 Magic B1<=100R004 buffer overflow vulnerability third-party-advisory
• https://github.com/K4ptor/H3C-routers-vulnerability/ exploit