CVE-2026-18900: high-severity vulnerability in H3C NX15
H3C NX15 Backend RPC esps file.exec os command injection
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.6epss 3.8%
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: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
Affected products
H3C · NX15public PoCs found — 1
cve_referencegithub.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/poc/postauth_file_exec_rce.pyunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — H3C NX15
In the same product, most dangerous first.
CVE-2026-18902HIGHH3C NX15 esps repeaterproc command injectionEPSS 3.8%CVE-2026-18814HIGHH3C NX15 esps reload.reload_config command injectionEPSS 3.6%CVE-2026-18813HIGHH3C NX15 esps delete command injectionEPSS 3.6%CVE-2026-18812HIGHH3C NX15 esps esps.ipv6.wan command injectionEPSS 3.6%CVE-2026-18811HIGHH3C NX15 esps add command injectionEPSS 3.6%CVE-2026-18901HIGHH3C NX15 Web API esps service.add routineEPSS 0.8%
References
https://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/poc/postauth_file_exec_rce.pyhttps://github.com/coconut652-7/IOT_Vul_Public/blob/main/H3C/NX15R017/file_exec_root_rce/report/postauth_file_exec_rce_report.mdhttps://vuldb.com/cve/CVE-2026-18900https://vuldb.com/submit/857814https://vuldb.com/vuln/385934https://vuldb.com/vuln/385934/cti