CVE-2026-111710
CVE-2026-111710 · Netcore NR256CN through 1.5.140116 Boa Web Server NULL Pointer Dereference DoS
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Netcore NR256CN through 1.5.140116 contains a NULL pointer dereference vulnerability in the Boa web server's user_auth() function that allows unauthenticated attackers to crash the server via a malformed Authorization header. Attackers can send a Basic Authorization value lacking a colon, such as one decoding to a single character, to protected routes like /router/get_user_type.cgi to kill the main Boa process and deny management interface access.
CVSS 8.7 · High · EPSS 0.3%
- Published
- Updated
Affected products and versions
nr256cn
- Versions
- ≥ 0, ≤ 1.5.140116: Affected (custom)
No fix published
Original sources
- https://github.com/lukadqq/netcore-router-public-refs/blob/a44d562736b41c944223297e9144d2ad7fa2aff1/2026.10.15-netcore-nr256cn-basic-auth-null-deref.md
- https://www.vulncheck.com/advisories/netcore-nr256cn-through-1.5.140116-boa-web-server-null-pointer-dereference-dos
- https://nvd.nist.gov/vuln/detail/CVE-2026-111710