Description (CNA)
Netis NC63 firmware through V3.0.0.3327 contains a stack-based buffer overflow vulnerability that allows unauthenticated remote attackers to overwrite saved stack state by supplying an oversized destHost parameter to the ipFilterList=mod action in netis.cgi. Attackers can exploit widthless sscanf conversions that copy user-supplied input into fixed-size stack buffers before authentication is verified, achieving remote code execution as root due to the Boa web server executing the CGI environment with root privileges.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Netis Systems / NC63 | affected 0 through 3.0.0.3327 |
CWE
CWE-121
References
- https://ozcanpng.dev/blog/cve-2026-76071-netis-nc63-ipfilter-stack-buffer-overflow/
- https://github.com/ozcanpng/CVE-2026-76071
- https://www.netis-systems.com/products/NC63.html
- https://www.vulncheck.com/advisories/netis-nc63-stack-buffer-overflow-via-desthost-parameter
ADP enrichment
No English description supplied.
No references supplied.