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TI-2026-76642 Aliases CVE-2026-112373

H3C Magic NX15 usrlist sub_416874 stack-based overflow

Priority MEDIUM 64CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

H3C Magic NX15 NX15V100R017 contains a stack-based buffer overflow in function sub_416874 of the file /usr/bin/usrlist. Improper bounds restriction (CWE-119) lets a remote attacker with low privileges overwrite the stack and cause a high impact on availability. The exploit has been publicly disclosed, and a public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A security vulnerability has been detected in H3C Magic NX15 NX15V100R017. This impacts the function sub_416874 of the file /usr/bin/usrlist. Such manipulation leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00472 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
H3CMagic NX15NX15V100R017—No fix listedCNA
  • Magic NX15 VendorH3C Affected NX15V100R017 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:o:h3c:magic_nx15_firmware:*:*:*:*:*:*:*:*——H3C
  • cpe:2.3:o:h3c:magic_nx15_firmware:*:*:*:*:*:*:*:* Versions — — ·H3C

Remediation

The sources list no fixed version for H3C Magic NX15.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-112373
  2. 2026-10-20 CISA SSVC decision points changed

References

Exploit 1

  • TI-2025-37618 An issue in H3C M102G HM1A0V200R010 wireless controller and BA1500L SWBA1A0V100R006… CVSS 3.1CRITICAL 9.8
  • TI-2024-35290 H3C GR-1800AX MiniGRW1B0V100R007 is vulnerable to remote code execution (RCE) via the aspForm parameter. CVSS 3.1CRITICAL 9.8
  • TI-2024-28559 H3C GR1100-P v100R009 was discovered to use a hardcoded password in /etc/shadow, which… CVSS 3.1CRITICAL 9.8
  • TI-2024-28557 H3C R3010 v100R002L02 was discovered to contain a hardcoded password vulnerability in… CVSS 3.1CRITICAL 9.8
  • TI-2023-13966 H3C GR-1200W MiniGRW1A0V100R006 was discovered to contain a stack overflow via the function version_set. CVSS 3.1CRITICAL 9.8
  • TI-2023-13965 H3C GR-1200W MiniGRW1A0V100R006 was discovered to contain a stack overflow via the function set_tftp_upgrad. CVSS 3.1CRITICAL 9.8
See all 228 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences