CVE-2026-3701
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
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.
Analysis
Remote code execution in H3C Magic B1 firmware through a buffer overflow in the SSID configuration function allows unauthenticated attackers to gain complete system compromise over the network. Public exploit code exists for this vulnerability, and no patch is currently available from the vendor despite early disclosure notification. …
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Remediation
Within 24 hours: Identify and inventory all H3C Magic B1 devices running firmware version 100R004 or earlier and isolate them from production networks if possible. Within 7 days: Implement network segmentation to restrict administrative access to these devices and deploy WAF/IDS rules to block exploitation attempts targeting /goform/aspForm endpoints. …
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External POC / Exploit Code
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