High severity · published Aug 5, 2026
CVE-2026-18900
H3C NX15 Backend RPC esps file.exec os command injection
7.2
CVSS
3.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.8% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NX
NX15 · H3C
V100R017 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18900
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18900
github.com
https://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/poc/postauth_file_exec_rce.py
github.com
https://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/report/postauth_file_exec_rce_report.md
vuldb.com
https://vuldb.com/cve/CVE-2026-18900
vuldb.com
https://vuldb.com/submit/857814
vuldb.com
https://vuldb.com/vuln/385934
vuldb.com
https://vuldb.com/vuln/385934/cti
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