CVE-2026-112016
CVE-2026-112016 · Netcore NR256CN through 1.5.140116 Unauthenticated Write to Fixed Boa Staging Files
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Netcore NR256CN through 1.5.140116 contains an unauthenticated file write vulnerability in the Boa-derived /bin/boa web server that allows remote attackers to overwrite update and restore staging files. Attackers can POST to a non-existent .cgi pathname to write attacker-controlled content into /tmp/boa_temp.update or /tmp/boa_temp.para, tampering with pending firmware updates or configuration restores or causing denial of service.
CVSS 6.9 · Medium · 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-fixed-tmp-sink-write.md
- https://www.vulncheck.com/advisories/netcore-nr256cn-through-1.5.140116-unauthenticated-write-to-fixed-boa-staging-files
- https://nvd.nist.gov/vuln/detail/CVE-2026-112016