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CVE-2026-6581

Published: Apr 19, 2026

Modified: Apr 20, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

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.

Vendor	Product	Versions
H3C	Magic B1	affected `100R004`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-358216 | H3C Magic B1 aspForm SetMobileAPInfoById buffer overflow

vdb-entry

technical-description

VDB-358216 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #790977 | New H3C Magic B1 <=100R004 buffer overflow

third-party-advisory

https://github.com/hmKunlun/H3Cc/blob/main/h3c.md

exploit

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