# CVE-2026-101073: Netcore NR289-GE authentication bypass in CGI dispatcher

Source: https://junglewise.ai/threats/cve-2026-101073-a-security-flaw-has-been-discovered-in-netcore-nr289-ge-1-4-5102  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-101073 · Severity: high · CVSS 8.3 · Published 2026-09-28

Netcore NR289-GE is a router used to manage SMB networks and Wi-Fi access. An authentication bypass flaw in the device's web management interface allows unauthenticated remote attackers to invoke administrative functions, potentially granting full control of the router and the networks it protects. Exploit code has been publicly released.

Technologies: [Netcore NR289-GE](https://junglewise.ai/threats/technologies/nr289-ge). Vendors: [Netcore](https://junglewise.ai/threats/vendors/netcore).

## Quick answers

**Is CVE-2026-101073 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101073 being exploited in the wild.

**How severe is CVE-2026-101073?** High severity, with a CVSS score of 8.3, published 28 September 2026.

**Which products and versions are affected?** Netcore NR289-GE 1.4.5102.

**Is there a fix for CVE-2026-101073?** 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-2026-101073 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-101073?** Check whether you run Netcore NR289-GE 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

The vulnerability is an authentication bypass (CWE-287/CWE-425) in the boa web server component. The whitelist check that exempts certain requests from HTTP Basic authentication contains a critical flaw: any URI containing the substring ".ico" is treated as whitelisted. By crafting a request like /x.ico/location_time.cgi, an attacker bypasses authentication and reaches CGI handlers, including administrative *_set.cgi operations, because the CGI routing depends only on file extension and not on file existence.

## Affected products

- Netcore NR289-GE 1.4.5102

## Timeline

- 2026-09-28: disclosed
- exploited: Public exploit code released

## References

- [https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/netcore_NR289-GE_V1.4.5102%2C2018.06.1418_44%20Router/Netcore_NR289-GE_authentication_bypass.md](https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/netcore_NR289-GE_V1.4.5102%2C2018.06.1418_44%20Router/Netcore_NR289-GE_authentication_bypass.md)
- [https://vuldb.com/cve/CVE-2026-101073](https://vuldb.com/cve/CVE-2026-101073)

## Related threats

- [Netcore NR289-GE authentication bypass in boa web server](https://junglewise.ai/threats/cve-2026-101077-a-flaw-has-been-found-in-netcore-nr289-ge-1-4-5102-this-impacts)
- [Netcore NR289-GE OS command injection in NTP handler](https://junglewise.ai/threats/cve-2026-101076-a-vulnerability-was-detected-in-netcore-nr289-ge-1-4-5102-this)
- [Netcore NR289-GE OS command injection in location_time.cgi](https://junglewise.ai/threats/cve-2026-101075-a-security-vulnerability-has-been-detected-in-netcore-nr289-ge-1)
- [Netcore NR289-GE stack buffer overflow in boa](https://junglewise.ai/threats/cve-2026-101074-a-weakness-has-been-identified-in-netcore-nr289-ge-1-4-5102-the)
- [Netcore NR289-GE OS command injection in CGI handler](https://junglewise.ai/threats/cve-2026-101072-a-vulnerability-was-identified-in-netcore-nr289-ge-1-4-5102-this)