CVE-2025-10942: h3c Magic b3

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability was identified in H3C Magic B3 up to 100R002. This affects the function AddMacList/EditMacList of the file /goform/aspForm. The manipulation of the argument param leads to buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• h3c Magic b3: version 100R002 only

Published 2025-09-25. Last modified 2026-06-17.