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    "cveMetadata": {
        "cveId": "CVE-2026-76070",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-08-18T21:04:48.503Z",
        "datePublished": "2026-08-24T15:41:16.908Z",
        "dateUpdated": "2026-08-24T18:28:13.077Z"
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                "dateUpdated": "2026-08-24T15:43:11.742Z"
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            "title": "Netis NC63 V3.0.0.3327 Stack Buffer Overflow via Login Password Parameter",
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                {
                    "lang": "en",
                    "value": "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."
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            ],
            "datePublic": "2026-08-20T00:00:00.000Z",
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                            "lang": "en",
                            "cweId": "CWE-121",
                            "description": "Stack-based Buffer Overflow",
                            "type": "CWE"
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                    "defaultStatus": "affected",
                    "vendor": "Netis Systems",
                    "product": "NC63",
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                            "status": "affected",
                            "version": "0",
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                            "lessThanOrEqual": "3.0.0.3327"
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                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
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                        "baseScore": 9.3,
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                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
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                        "integrityImpact": "HIGH",
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            "references": [
                {
                    "url": "https://ozcanpng.dev/blog/cve-2026-76070-netis-nc63-login-stack-buffer-overflow/",
                    "name": "Researcher Blog",
                    "tags": [
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                    "name": "Researcher GitHub Repo",
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                },
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                    "url": "https://www.netis-systems.com/products/NC63.html",
                    "name": "Product Page",
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                        "product"
                    ]
                },
                {
                    "url": "https://www.vulncheck.com/advisories/netis-nc63-stack-buffer-overflow-via-login-password-parameter",
                    "tags": [
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                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Özcan Ersan (@ozcanpng)",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "vulncheck"
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        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-24T18:28:03.496296Z",
                                "id": "CVE-2026-76070",
                                "options": [
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                                        "Exploitation": "poc"
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                                        "Technical Impact": "total"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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