{"id":"CVE-2020-1464","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-1464","generatedAt":"2026-10-31T16:13:24.378Z","title":"Microsoft Windows Spoofing Vulnerability","description":"A spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and load improperly signed files.\nIn an attack scenario, an attacker could bypass security features intended to prevent improperly signed files from being loaded.\nThe update addresses the vulnerability by correcting how Windows validates file signatures.","published":"2020-08-17T19:15:15.000Z","lastModified":"2026-06-17T03:01:28.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-347"],"affected":["microsoft/windows 10 1507","microsoft/windows 10 1607","microsoft/windows 10 1709","microsoft/windows 10 1803","microsoft/windows 10 1809","microsoft/windows 10 1903","microsoft/windows 10 1909","microsoft/windows 10 2004","microsoft/windows 7","microsoft/windows 8.1","microsoft/windows rt 8.1","microsoft/windows server 1903","microsoft/windows server 1909","microsoft/windows server 2004","microsoft/windows server 2008","microsoft/windows server 2012","microsoft/windows server 2016","microsoft/windows server 2019"],"epss":{"score":0.38946,"percentile":0.98588,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-1464"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html","tags":["Third Party Advisory"],"source":"secure@microsoft.com"},{"url":"https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/","tags":["Issue Tracking","Third Party Advisory"],"source":"secure@microsoft.com"},{"url":"https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd","tags":["Exploit","Third Party Advisory"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1464","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-1464","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}