TI-2026-15457 Aliases CVE-2026-18900 GHSA-4hjf-4f6f-fghm

H3C NX15 Backend RPC esps file.exec os command injection

HIGH 72CWE-77Published 2026-08-05 · Updated 2026-08-05

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

A weakness has been identified in H3C NX15 V100R017. This impacts the function file.exec of the file /api/esps of the component Backend RPC. This manipulation of the argument File causes os command injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.03822 90th 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: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
H3C	NX15	V100R017	—	No fix listed	CNA

NX15 VendorH3C Affected V100R017 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:h3c:nx15::::::::	—	—	H3C

cpe:2.3:a:h3c:nx15:*:*:*:*:*:*:*:* Versions — — ·H3C

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-18900
2026-10-03 Alias added: GHSA-4hjf-4f6f-fghm
2026-10-21 EPSS moved to the 90th–95th percentile
2026-10-25 EPSS moved to the 50th–90th percentile
2026-10-27 EPSS moved to the 90th–95th percentile

References

Exploit 1

https://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/poc/postauth_file_exec_rce.py

Other 1

https://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/report/postauth_file_exec_rce_report.md

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