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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.

PUBLISHED Reserved 2026-04-18 | Published 2026-04-19 | Updated 2026-04-20 | Assigner VulDB




HIGH: 8.7CVSS: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
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

100R004
affected

Timeline

2026-04-18:Advisory disclosed
2026-04-18:VulDB entry created
2026-04-18:VulDB entry last update

Credits

s1incere (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/358200 (VDB-358200 | H3C Magic B1 aspForm SetAPWifiorLedInfoById buffer overflow) vdb-entry technical-description

vuldb.com/vuln/358200/cti (VDB-358200 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/789531 (Submit #789531 | New H3C Technologies Co., Ltd. Magic B1 Magic B1<=100R004 buffer overflow vulnerability) third-party-advisory

github.com/K4ptor/H3C-routers-vulnerability/ exploit

cve.org (CVE-2026-6563)

nvd.nist.gov (CVE-2026-6563)

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