Stack-Based Buffer Overflow in H3C Magic NX15 Device
CVE-2026-112373

7.1HIGH

Key Information:

Vendor

H3c
Status
Magic Nx15
Vendor
CVE Published:
19 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-112373?

A stack-based buffer overflow vulnerability has been identified in the H3C Magic NX15, specifically within the function sub_416874 located in the /usr/bin/usrlist file. This flaw allows for remote exploitation, potentially enabling unauthorized access or malfeasance. The vulnerability has been publicly disclosed, indicating that it can be actively exploited, and the vendor has been informed regarding this issue to facilitate prompt remediation.

Affected Version(s)

Magic NX15 NX15V100R017

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-2026-112373 - Proof of Concept

References

https://vuldb.com/vuln/422421
vdb-entrytechnical-description
https://vuldb.com/vuln/422421/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-112373
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
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

starlight (VulDB User)
VulDB CNA Team
.