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 submitting an oversized Base64-encoded password to the login handler in /bin/netis.cgi. Attackers can exploit the custom Base64 decoder's lack of output length validation against the fixed-size stack buffer to achieve remote code execution with root privileges, as the Boa web server executes the CGI environment as root.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Netis Systems / NC63 | affected 0 through 3.0.0.3327 |
CWE
CWE-121
References
- https://ozcanpng.dev/blog/cve-2026-76070-netis-nc63-login-stack-buffer-overflow/
- https://github.com/ozcanpng/CVE-2026-76070
- https://www.netis-systems.com/products/NC63.html
- https://www.vulncheck.com/advisories/netis-nc63-stack-buffer-overflow-via-login-password-parameter
ADP enrichment
No English description supplied.
No references supplied.