CVE-2026-6563: Buffer Overflow in H3C Magic B1
A vulnerability has been found in H3C Magic B1 up to 100R004. The affected element is the function SetAPWifiorLedInfoById of the file /goform/aspForm. The manipulation of the argument param leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AI Analysis
Technical Summary
This vulnerability in H3C Magic B1 up to version 100R004 involves a buffer overflow in the SetAPWifiorLedInfoById function within the /goform/aspForm file. The issue is triggered by manipulating an argument parameter remotely, potentially allowing an attacker to execute arbitrary code or cause a denial of service. The CVSS 4.0 base score is 8.7, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. The vendor was contacted but did not respond, and no official patch or remediation guidance is currently available.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to cause a buffer overflow, potentially leading to arbitrary code execution or denial of service on the affected device. The high CVSS score reflects significant impact on confidentiality, integrity, and availability. However, no confirmed exploits in the wild have been reported to date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no official patch is available, users should consider mitigating exposure by restricting network access to the affected device, especially from untrusted networks, until a fix is released.
CVE-2026-6563: Buffer Overflow in H3C Magic B1
Description
A vulnerability has been found in H3C Magic B1 up to 100R004. The affected element is the function SetAPWifiorLedInfoById of the file /goform/aspForm. The manipulation of the argument param leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in H3C Magic B1 up to version 100R004 involves a buffer overflow in the SetAPWifiorLedInfoById function within the /goform/aspForm file. The issue is triggered by manipulating an argument parameter remotely, potentially allowing an attacker to execute arbitrary code or cause a denial of service. The CVSS 4.0 base score is 8.7, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. The vendor was contacted but did not respond, and no official patch or remediation guidance is currently available.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to cause a buffer overflow, potentially leading to arbitrary code execution or denial of service on the affected device. The high CVSS score reflects significant impact on confidentiality, integrity, and availability. However, no confirmed exploits in the wild have been reported to date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no official patch is available, users should consider mitigating exposure by restricting network access to the affected device, especially from untrusted networks, until a fix is released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-18T16:02:07.227Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e4964d19fe3cd2cd310932
Added to database: 4/19/2026, 8:46:05 AM
Last enriched: 4/27/2026, 12:26:04 AM
Last updated: 6/3/2026, 12:10:44 PM
Views: 131
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