CVE-2026-8764— H3C Magic B3 aspForm UpdateWanParams buffer overflow
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-8764
Vulnerability Information
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Vulnerability Title
H3C Magic B3 aspForm UpdateWanParams buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security vulnerability has been detected in H3C Magic B3 up to 100R002. This affects the function UpdateWanParams of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-8764
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCVerified env Premium
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Qwen3.6-35B-A3B · 7389 chars
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III. Intelligence Information for CVE-2026-8764
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Advisory · 1
- CVE-2026-8764 | H3C Magic B3 up to 100R002 /goform/aspForm UpdateWanParams param buffer overflowvdb-entrytechnical-description
- https://vuldb.com/submit/811373third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-8764
IV. Related Vulnerabilities
Same vendor: H3C
- CVE-2026-6581
H3C Magic B1 aspForm SetMobileAPInfoById buffer overflow - CVE-2026-6563
H3C Magic B1 aspForm SetAPWifiorLedInfoById buffer overflow - CVE-2026-6560
H3C Magic B0 aspForm Edit_BasicSSID buffer overflow - CVE-2026-3943
H3C ACG1000-AK230 aaa_portal_auth_local_submit command injec - CVE-2026-3701
H3C Magic B1 aspForm Edit_BasicSSID_5G buffer overflow
Same weakness: CWE-120
- CVE-2026-8776
Edimax BR-6428NS POST Request formPPTPSetup buffer overflow - CVE-2026-8775
Edimax BR-6428NS POST Request formL2TPSetup buffer overflow - CVE-2018-25328
VX Search 10.6.18 Local Buffer Overflow via Directory Field - CVE-2018-25323
Allok AVI DivX MPEG to DVD Converter 2.6.1217 Buffer Overflo - CVE-2020-37234
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V. Comments for CVE-2026-8764
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