{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2019-25572", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-03-21T12:40:32.843Z", "datePublished": "2026-03-21T12:47:11.466Z", "dateUpdated": "2026-03-21T12:47:11.466Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-03-21T12:47:11.466Z"}, "title": "NordVPN 6.19.6 Denial of Service via Email Field Buffer Overflow", "descriptions": [{"lang": "en", "value": "NordVPN 6.19.6 contains a denial of service vulnerability that allows local attackers to crash the application by submitting an excessively long string in the email input field. Attackers can paste a buffer of 100,000 characters into the email field during login to trigger an application crash."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Handling of Overlap Between Protected Memory Ranges", "cweId": "CWE-1260", "type": "CWE"}]}], "affected": [{"vendor": "Nordvpn", "product": "NordVPN", "versions": [{"version": "6.19.6", "status": "affected"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:nordvpn:nordvpn:6.19.6:*:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:nordvpn:nordvpn:3.3.10:*:*:*:*:macos:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:nordvpn:nordvpn:6.12.7.0:*:*:*:*:windows:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:nordvpn:nordvpn:6.14.28.0:*:*:*:*:*:*:*"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "baseScore": 6.9, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://www.exploit-db.com/exploits/46343", "name": "ExploitDB-46343", "tags": ["exploit"]}, {"url": "https://nordvpn.com/", "name": "Official Product Homepage", "tags": ["product"]}, {"url": "https://downloads.nordcdn.com/apps/windows/10/NordVPN/latest/NordVPNSetup.exe", "name": "Product Reference", "tags": ["product"]}, {"name": "VulnCheck Advisory: NordVPN 6.19.6 Denial of Service via Email Field Buffer Overflow", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/nordvpn-denial-of-service-via-email-field-buffer-overflow"}], "credits": [{"lang": "en", "value": "Alejandra S\u00e1nchez", "type": "finder"}], "x_generator": {"engine": "vulncheck"}, "datePublic": "2019-02-11T00:00:00.000Z"}}}

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