Vulnerability · Published Sep 21, 2026 · Assigned by VulDB

CVE-2026-94101Netcore NBR200V2 routerd vlan_load_form_uci buffer overflow

Critical 9.9

In plain English

A critical-severity buffer overflow in NBR200V2 from Netcore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)9.9Critical

Exploit odds (30 days)0.4%top 61.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Netcore	NBR200V2	1.3.241127.071246

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-408030 | Netcore NBR200V2 routerd vlan_load_form_uci buffer overflow vdb-entry, technical-description
VDB-408030 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-94101 | CVE Analysis and Report third-party-advisory
Submit #892995 | netcore NBR200V2 V1.3.241127.071246 Buffer Overflow third-party-advisory
https://app.notion.com/p/Netcore-NBR200V2-Vul-9-39f797159f1580668db9e8df031dbdd5 exploit