CVE-2026-6581
Received Received - Intake
Buffer Overflow in H3C Magic B1 /goform/aspForm Allows Remote Exploit

Publication date: 2026-04-19

Last updated on: 2026-04-19

Assigner: VulDB

Description
A vulnerability was detected in H3C Magic B1 up to 100R004. Affected by this vulnerability is the function SetMobileAPInfoById of the file /goform/aspForm. Performing a manipulation of the argument param results in buffer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Meta Information
Published
2026-04-19
Last Modified
2026-04-19
Generated
2026-06-16
AI Q&A
2026-04-20
EPSS Evaluated
2026-06-15
NVD
CVE-2026-6581
EUVD
EUVD-2026-23716
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
h3c magic_b1 to 100R004 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
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Executive Summary

This vulnerability exists in the H3C Magic B1 device up to version 100R004, specifically in the function SetMobileAPInfoById within the file /goform/aspForm. It is caused by improper handling of an argument parameter, which leads to a buffer overflow condition. This flaw can be exploited remotely, allowing an attacker to manipulate the input to trigger the overflow.

Impact Analysis

Exploitation of this vulnerability can have severe impacts as it allows remote attackers to cause a buffer overflow, potentially leading to arbitrary code execution or system compromise. The CVSS scores indicate a high severity with impacts on confidentiality, integrity, and availability, meaning attackers could gain unauthorized access, modify data, or disrupt services.

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