CVE-2026-6563: H3C Magic B1 aspForm SetAPWifiorLedInfoById buffer overflow
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-6563?
CVE-2026-6563 has been classified with a high severity due to its potential for a remote code execution through buffer overflow.
How do I fix CVE-2026-6563?
To mitigate CVE-2026-6563, users should upgrade the H3C Magic B1 firmware to a version beyond 100R004.
What causes the CVE-2026-6563 vulnerability?
CVE-2026-6563 is caused by improper handling of user input in the SetAPWifiorLedInfoById function, leading to buffer overflow.
Is CVE-2026-6563 easy to exploit?
Yes, CVE-2026-6563 can be exploited easily if an attacker can access the vulnerable endpoint with crafted input.
What devices are affected by CVE-2026-6563?
CVE-2026-6563 affects H3C Magic B1 devices running firmware version up to and including 100R004.