{"id":"CVE-2021-1675","title":"Windows Print Spooler Remote Code Execution Vulnerability","summary":"Windows Print Spooler Remote Code Execution Vulnerability","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","vendor":"microsoft","product":"windows_10_1507","affected":["windows_10_1507 < 10.0.10240.18967","windows_10_1607 < 10.0.14393.4467","windows_10_1809 < 10.0.17763.1999","windows_10_1909 < 10.0.18363.1621","windows_10_2004 < 10.0.19041.1052","windows_10_20h2 < 10.0.19042.1052","windows_10_21h1 < 10.0.19043.1052","windows_7","windows_8.1","windows_rt_8.1","windows_server_2004 < 10.0.19041.1052","windows_server_2008","windows_server_2008 = r2","windows_server_2012","windows_server_2012 = r2","windows_server_2016 < 10.0.14393.4467","windows_server_2019 < 10.0.17763.1999"],"patched":["windows_10_1507 10.0.10240.18967","windows_10_1607 10.0.14393.4467","windows_10_1809 10.0.17763.1999","windows_10_1909 10.0.18363.1621","windows_10_2004 10.0.19041.1052","windows_10_20h2 10.0.19042.1052","windows_10_21h1 10.0.19043.1052","windows_server_2004 10.0.19041.1052","windows_server_2016 10.0.14393.4467","windows_server_2019 10.0.17763.1999"],"published":"2021-06-08","updated":"2026-08-12","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-1675","references":[{"url":"http://packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code-Execution.html","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.html","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675","label":"secure@microsoft.com"},{"url":"https://www.kb.cert.org/vuls/id/383432","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code-Execution.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.kb.cert.org/vuls/id/383432","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1675","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.86132,"epssPercentile":0.99728,"kev":true,"kevDateAdded":"2021-11-03","kevDueDate":"2021-11-17","kevRansomware":true,"exploited":true,"ingestedAt":"2026-08-12T19:54:26.053Z","exploits":{"github":49,"githubRepos":["https://github.com/yu2u/CVE-2021-1675","https://github.com/cube0x0/CVE-2021-1675","https://github.com/LaresLLC/CVE-2021-1675"],"metasploit":["exploit/windows/dcerpc/cve_2021_1675_printnightmare"],"checkedAt":"2026-09-21T15:24:08.678Z"},"exploitAvailable":true,"slug":"CVE-2021-1675","body":"## Overview\n\nWindows Print Spooler Remote Code Execution Vulnerability\n\n## Affected\n\n- `windows_10_1507 < 10.0.10240.18967`\n- `windows_10_1607 < 10.0.14393.4467`\n- `windows_10_1809 < 10.0.17763.1999`\n- `windows_10_1909 < 10.0.18363.1621`\n- `windows_10_2004 < 10.0.19041.1052`\n- `windows_10_20h2 < 10.0.19042.1052`\n- `windows_10_21h1 < 10.0.19043.1052`\n- `windows_7`\n- `windows_8.1`\n- `windows_rt_8.1`\n- `windows_server_2004 < 10.0.19041.1052`\n- `windows_server_2008`\n- `windows_server_2008 = r2`\n- `windows_server_2012`\n- `windows_server_2012 = r2`\n- `windows_server_2016 < 10.0.14393.4467`\n- `windows_server_2019 < 10.0.17763.1999`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_10_1507 10.0.10240.18967`\n- `windows_10_1607 10.0.14393.4467`\n- `windows_10_1809 10.0.17763.1999`\n- `windows_10_1909 10.0.18363.1621`\n- `windows_10_2004 10.0.19041.1052`\n- `windows_10_20h2 10.0.19042.1052`\n- `windows_10_21h1 10.0.19043.1052`\n- `windows_server_2004 10.0.19041.1052`\n- `windows_server_2016 10.0.14393.4467`\n- `windows_server_2019 10.0.17763.1999`","depth":"abyssal","depthScore":90,"depthScoreParts":{"impact":42.9,"likelihood":17.2,"exploitation":25,"ransomware":5},"changes":[{"seq":4498,"id":"CVE-2021-1675","ts":1788887185884,"field":"exploit_available","old":"false","new":"true"},{"seq":3381,"id":"CVE-2021-1675","ts":1788886303611,"field":"exploit_available","old":"true","new":"false"},{"seq":2236,"id":"CVE-2021-1675","ts":1788882973251,"field":"exploit_available","old":"false","new":"true"},{"seq":1265,"id":"CVE-2021-1675","ts":1788882384904,"field":"exploit_available","old":"true","new":"false"},{"seq":379,"id":"CVE-2021-1675","ts":1788881820219,"field":"exploit_available","old":"false","new":"true"}]}