Quick answers
- Is CVE-2026-94100 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-94100 being exploited in the wild.
- How severe is CVE-2026-94100?
- Critical severity, with a CVSS score of 9.9, published 21 September 2026.
- Which products and versions are affected?
- Netcore NBR200V2 1.3.241127.071246.
- Is there a fix for CVE-2026-94100?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-94100 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-94100?
- Check whether you run Netcore NBR200V2 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A buffer overflow exists in the wan_config_set_vlan function within /usr/bin/routerd when processing the vlan_wanX.ports argument. The vulnerability is remotely exploitable without authentication and allows unauthenticated network-based attackers to cause memory corruption, leading to arbitrary code execution or denial of service. Public exploit code is available.
Affected products
- Netcore NBR200V2 1.3.241127.071246
Timeline
- 2026-09-21: disclosed
- other: Public exploit available