CVE-2026-18814Public exploitNetwork attack vector

Authenticated root command execution via unescaped config parameter

Published Aug 4, 2026 · Updated Aug 4, 2026

OS command injection in H3C NX15 firmware V100R017 allows remote authenticated users to execute arbitrary commands as root through /api/esps. The reload.reload_config handler inserts the config parameter into /sbin/config_reload without escaping or filtering, then passes the string to system(). Exploitation requires an administrator web session and a payload within the 31-byte input limit; successful commands run with UID 0.

CVSS severity7.2
High
EPSS probability2.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in H3C NX15 firmware V100R017 allows remote authenticated users to execute arbitrary commands as root through /api/esps. The reload.reload_config handler inserts the config parameter into /sbin/config_reload without escaping or filtering, then passes the string to system(). Exploitation requires an administrator web session and a payload within the 31-byte input limit; successful commands run with UID 0.

The record

CVE
CVE-2026-18814
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
New H3C Technologies Co., Ltd.
Product
H3C Magic NX15 Wireless Router
Classifications
CWE-77, CWE-74, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V100R017

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

New H3C Technologies Co., Ltd. · H3C Magic NX15 Wireless Routerversion=V100R017

Published CVSS scores

7.2VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.3VulDBAV:N/AC:L/Au:M/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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