CVE•Published 2026-08-24•Modified 2026-08-24•1 article on news•3 live references•NVD data
CVE-2026-76070
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
Description
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.
Timeline
Published 2026-08-24
Modified 2026-08-24
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-76070Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-76070Censys host search filtered to this CVE id.
grep.app
CVE-2026-76070Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-76070GitHub code search for direct mentions.
Google dork
"CVE-2026-76070" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.