CVE-2026-8764

H3C Magic B3 aspForm UpdateWanParams buffer overflow

HIGH
7.2
CVSS Score
Published: May 17, 2026 at 09:30 PM UTC
Updated: October 26, 2026 at 01:10 PM UTC
1 product affected across 1 vendorMagic B3

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Severity
HIGH7.2
Exploit prediction
EPSS 0.5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions100R002

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/364389
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/364389/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/811373
ExploitIssue Tracking
Source: cverecord
https://github.com/yyyy0031/CVE/issues/1

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-120CWE-119

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