Quick answers
- Is CVE-2026-111710 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-111710 being exploited in the wild.
- How severe is CVE-2026-111710?
- High severity, with a CVSS score of 7.5, published 16 October 2026.
- Which products and versions are affected?
- Netcore NR256CN through 1.5.140116.
- Is there a fix for CVE-2026-111710?
- 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-2026-111710 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-111710?
- Check whether you run Netcore NR256CN 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 Boa web server in affected versions contains a NULL pointer dereference in the user_auth() function when parsing Basic Authentication headers. The vulnerability occurs because the function uses strchr() to find a colon in the decoded authorization value without validating that the colon exists; a malformed header lacking a colon causes a NULL pointer write before authentication failure handling executes. An unauthenticated attacker on the network can trigger a denial-of-service crash by sending this crafted request to protected routes.
Affected products
- Netcore NR256CN through 1.5.140116
Timeline
- 2026-10-16: disclosed