Description
Netcore NR256CN through 1.5.140116 contains an unauthenticated file write vulnerability in the Boa-derived /bin/boa web server that allows remote attackers to overwrite update and restore staging files. Attackers can POST to a non-existent .cgi pathname to write attacker-controlled content into /tmp/boa_temp.update or /tmp/boa_temp.para, tampering with pending firmware updates or configuration restores or causing denial of service.
Published: 2026-10-18
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 19 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 19 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Netcore
Netcore nr256cn
Vendors & Products Netcore
Netcore nr256cn

Sun, 18 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description Netcore NR256CN through 1.5.140116 contains an unauthenticated file write vulnerability in the Boa-derived /bin/boa web server that allows remote attackers to overwrite update and restore staging files. Attackers can POST to a non-existent .cgi pathname to write attacker-controlled content into /tmp/boa_temp.update or /tmp/boa_temp.para, tampering with pending firmware updates or configuration restores or causing denial of service.
Title Netcore NR256CN through 1.5.140116 Unauthenticated Write to Fixed Boa Staging Files
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-19T16:03:11.589Z

Reserved: 2026-10-18T01:24:03.208Z

Link: CVE-2026-112016

cve-icon Vulnrichment

Updated: 2026-10-19T16:03:02.451Z

cve-icon NVD

Status : Deferred

Published: 2026-10-18T12:17:14.450

Modified: 2026-10-19T21:14:14.150

Link: CVE-2026-112016

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T14:00:44Z

Weaknesses
  • CWE-306

    Missing Authentication for Critical Function