CVE-2026-76070: Netis NC63 V3.0.0.3327 Stack Buffer Overflow via Login Password Parameter
Netis Systems · NC63
Affected: Netis Systems NC63 · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 71% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Netis Systems · NC63up to and including 3.0.0.3327
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Netis Systems
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-76070 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.