Buffer overflow in Netcore Nbr200v2
CVE-2026-94101
A security vulnerability has been detected in Netcore NBR200V2 1.3.241127.071246. The affected element is the function vlan_load_form_uci of the file /usr/bin/routerd. The manipulation of the argument wan_num leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (38.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.004 · change: -0.004
Affected products
- Netcore Nbr200v2 — versions 1.3.241127.071246
Weakness classification (CWE)
References
- vuldb.com/vuln/408030 (technical-description, vdb-entry)
- vuldb.com/vuln/408030/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-94101 (third-party-advisory)
- vuldb.com/submit/892995 (third-party-advisory)
- app.notion.com/p/Netcore-NBR200V2-Vul-9-39f797159f1580668db9e8df031dbdd5 (exploit)
Frequently asked questions
- What is CVE-2026-94101?
- CVE-2026-94101 is a critical-severity vulnerability in Netcore Nbr200v2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.9/10. Published 2026-09-21.
- How severe is CVE-2026-94101?
- Critical severity. CVSS v3 base score is 9.9 out of 10.