# CVE-2026-101075: Netcore NR289-GE OS command injection in location_time.cgi

Source: https://junglewise.ai/threats/cve-2026-101075-a-security-vulnerability-has-been-detected-in-netcore-nr289-ge-1  
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-2026-101075 · Severity: critical · CVSS 10 · Published 2026-09-28

Netcore NR289-GE is an SMB router and AC controller device. A critical vulnerability allows unauthenticated attackers to execute arbitrary commands on the device by injecting shell commands through the location_time.cgi interface, bypassing authentication mechanisms. An attacker can gain full control of the router and access sensitive data like network credentials and connected device information.

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

## Quick answers

**Is CVE-2026-101075 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101075 being exploited in the wild.

**How severe is CVE-2026-101075?** Critical severity, with a CVSS score of 10, published 28 September 2026.

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

**Is there a fix for CVE-2026-101075?** 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-2026-101075 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-101075?** 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 location_time.cgi endpoint fails to sanitize the "mac" form parameter before passing it to a shell command executed via system(). The vulnerability is reachable without authentication due to a .ico whitelist bypass mechanism. Attack requires only that the first 6 bytes of the injected MAC address match an entry in the device's bound-AP list (normally present in standard operation), and the attacker can inject arbitrary shell commands using quote-closing and comment syntax.

## Affected products

- Netcore NR289-GE 1.4.5102

## Timeline

- 2026-09-28: disclosed: Vulnerability publicly disclosed on GitHub

## References

- [https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/netcore_NR289-GE_V1.4.5102%2C2018.06.1418_44%20Router/Netcore_NR289-GE_location_time_command_injection.md](https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/netcore_NR289-GE_V1.4.5102%2C2018.06.1418_44%20Router/Netcore_NR289-GE_location_time_command_injection.md)
- [https://vuldb.com/cve/CVE-2026-101075](https://vuldb.com/cve/CVE-2026-101075)

## 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 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 authentication bypass in CGI dispatcher](https://junglewise.ai/threats/cve-2026-101073-a-security-flaw-has-been-discovered-in-netcore-nr289-ge-1-4-5102)
- [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)