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CVE-2026-111710

7.5, high

Netcore NR256CN NULL Pointer Dereference Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.5, high high CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
16 Oct 2026yesterday

Description

Netcore NR256CN through 1.5.140116 contains a NULL pointer dereference vulnerability in the Boa web server's user_auth() function that allows unauthenticated attackers to crash the server via a malformed Authorization header. Attackers can send a Basic Authorization value lacking a colon, such as one decoding to a single character, to protected routes like /router/get_user_type.cgi to kill the main Boa process and deny management interface access.

Details

Vendor
Netcore
Product
NR256CN
Weakness
CWE-476 (opens in a new tab)
Status
Deferred
Updated
16 Oct 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References 2

Other references 2

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Netcore CVEs

Every Netcore CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-108907 Netcore NR268 Improper Authentication Vulnerability EPSS 1% 10, critical
  • CVE-2026-108929 Netcore NR268 Injection Vulnerability EPSS 0.4% 9.9, critical
  • CVE-2026-108906 Netcore NR268 Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability EPSS 0.4% 7.2, high
  • CVE-2026-101072 Netcore NR289-GE Command Injection Vulnerability EPSS 2% 10, critical
  • CVE-2026-101077 Netcore NR289-GE Improper Authentication Vulnerability EPSS 0.7% 10, critical

Beyond this page

Is CVE-2026-111710 in your network?

This page tells you how dangerous CVE-2026-111710 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.