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CVE-2026-6581

H3C Magic B1 aspForm SetMobileAPInfoById buffer overflow

HIGH
8.8
CVSS Score
Published: April 19, 2026 at 10:30 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorMagic B1

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

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

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/358216
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/358216/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/790977
Exploit
Source: cverecord
https://github.com/hmKunlun/H3Cc/blob/main/h3c.md

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

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

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-120CWE-119

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