CVE-2026-112016: medium-severity vulnerability in Netcore NR256CN
Netcore NR256CN through 1.5.140116 Unauthenticated Write to Fixed Boa Staging Files
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.3%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
Netcore · NR256CNRelated CVEs — Netcore NR256CN
In the same product, most dangerous first.
CVE-2026-111711CRITICALNetcore NR256CN through 1.5.140116 Pre-Auth Stack Overflow via Boa user_ok()EPSS 0.5%CVE-2026-111710HIGHNetcore NR256CN through 1.5.140116 Boa Web Server NULL Pointer Dereference DoSEPSS 0.3%CVE-2026-111712MEDIUMNetcore NR256CN through 1.5.140116 Authentication Bypass via CGI Path PrefixEPSS 0.2%