Is CVE-2026-108906 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-108906 being exploited in the wild.

How severe is CVE-2026-108906?

High severity, with a CVSS score of 7.2, published 12 October 2026.

Is there a fix for CVE-2026-108906?

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-2026-108906 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-108906?

Check whether you run Netcore NR268 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.

CVE-2026-108906: Netcore NR268 out-of-bounds read in ARP filter upload

CVE-2026-108906 · Severity: high · CVSS 7.2 · Published 2026-10-12

The Netcore NR268 router's ARP filter configuration upload feature contains a memory leak vulnerability that allows authenticated attackers to read sensitive data from the device's memory. By uploading a specially crafted file, an attacker can cause the router to leak adjacent stack memory into logs and configuration files, potentially exposing passwords, cryptographic keys, or other sensitive information stored in memory.

Technologies: Netcore NR268. Vendors: Netcore.

Quick answers

Is CVE-2026-108906 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-108906 being exploited in the wild.
How severe is CVE-2026-108906?: High severity, with a CVSS score of 7.2, published 12 October 2026.
Which products and versions are affected?: Netcore NR268 1.7.121109.
Is there a fix for CVE-2026-108906?: 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-2026-108906 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-108906?: Check whether you run Netcore NR268 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 filter_arp_put_file_cgi function in /router/filter_arp_put_file.cgi reads up to 1024-byte chunks from an uploaded file into a 1072-byte stack buffer without null-termination. When fprintf() and fputs() are called on this buffer, if the uploaded chunk is exactly 1024 bytes with no NUL terminator, both string functions will read past the received data into adjacent stack memory, leaking those bytes into stderr logs and the imported configuration file. An authenticated attacker can trigger this by posting multipart data with the field name "put_file".

Affected products

Netcore NR268 1.7.121109

Timeline

2026-09-14: disclosed
2026-10-12: advisory

References

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