| Title | New H3C Technologies Co., Ltd. H3C Magic B3 <= 100R002 Buffer Overflow |
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| Description | A serious buffer overflow vulnerability exists in the H3C Magic B3 router. An attacker can trigger this vulnerability by accessing the /goform/aspForm interface and supplying a crafted param parameter, which may result in a denial of service (DoS) condition and, under specific circumstances, potentially lead to remote code execution. The exact trigger point is located in the UpdateWanParams related processing logic.
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| Source | ⚠️ https://github.com/yyyy0031/CVE/issues/1 |
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| User | yyy0032 (UID 97547) |
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| Submission | 04/23/2026 13:53 (3 months ago) |
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| Moderation | 05/17/2026 10:51 (24 days later) |
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| Status | Accepted |
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| VulDB entry | 364389 [H3C Magic B3 up to 100R002 /goform/aspForm UpdateWanParams param buffer overflow] |
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| Points | 19 |
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