Buffer Overflow Vulnerability in H3C Magic B3 Product Line
CVE-2025-10942

8.7HIGH

Key Information:

Vendor

H3c
Status
Magic B3
Vendor
CVE Published:
25 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-10942?

A buffer overflow vulnerability exists in the H3C Magic B3 products, specifically within the AddMacList function of the /goform/aspForm file. Manipulating the argument parameter can lead to an overflow, allowing remote attackers to exploit this weakness. The public availability of the exploit increases the risk, and the H3C vendor has not responded to notifications regarding this issue.

Affected Version(s)

Magic B3 100R002

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-10942 - Proof of Concept

References

https://vuldb.com/?id.325812
vdb-entrytechnical-description
https://vuldb.com/?ctiid.325812
signaturepermissions-required
https://vuldb.com/?submit.651813
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

QMSSDXN (VulDB User)
JSON
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CVE-2025-10942 : Buffer Overflow Vulnerability in H3C Magic B3 Product Line