{"id":"CVE-2020-0787","title":"An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability'.","summary":"An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of Privilege 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","cwe":["CWE-59","CWE-59"],"vendor":"microsoft","product":"windows_10_1507","affected":["windows_10_1507","windows_10_1607","windows_10_1709","windows_10_1803","windows_10_1809","windows_10_1903","windows_10_1909","windows_7","windows_8.1","windows_rt_8.1","windows_server_1803","windows_server_1903","windows_server_1909","windows_server_2008","windows_server_2008 = r2","windows_server_2012","windows_server_2012 = r2","windows_server_2016","windows_server_2019"],"published":"2020-03-12","updated":"2026-08-12","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-0787","references":[{"url":"http://packetstormsecurity.com/files/158056/Background-Intelligent-Transfer-Service-Privilege-Escalation.html","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0787","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/158056/Background-Intelligent-Transfer-Service-Privilege-Escalation.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0787","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0787","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.42524,"epssPercentile":0.98686,"kev":true,"kevDateAdded":"2022-01-28","kevDueDate":"2022-07-28","kevRansomware":true,"exploited":true,"ingestedAt":"2026-08-12T05:52:07.506Z","exploits":{"github":2,"githubRepos":["https://github.com/cbwang505/CVE-2020-0787-EXP-ALL-WINDOWS-VERSION","https://github.com/yanghaoi/CVE-2020-0787"],"metasploit":["exploit/windows/local/cve_2020_0787_bits_arbitrary_file_move"],"checkedAt":"2026-09-21T15:23:43.540Z"},"exploitAvailable":true,"slug":"CVE-2020-0787","body":"## Overview\n\nAn elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability'.\n\n## Affected\n\n- `windows_10_1507`\n- `windows_10_1607`\n- `windows_10_1709`\n- `windows_10_1803`\n- `windows_10_1809`\n- `windows_10_1903`\n- `windows_10_1909`\n- `windows_7`\n- `windows_8.1`\n- `windows_rt_8.1`\n- `windows_server_1803`\n- `windows_server_1903`\n- `windows_server_1909`\n- `windows_server_2008`\n- `windows_server_2008 = r2`\n- `windows_server_2012`\n- `windows_server_2012 = r2`\n- `windows_server_2016`\n- `windows_server_2019`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":81,"depthScoreParts":{"impact":42.9,"likelihood":8.5,"exploitation":25,"ransomware":5},"changes":[{"seq":4465,"id":"CVE-2020-0787","ts":1788887181665,"field":"exploit_available","old":"false","new":"true"},{"seq":3348,"id":"CVE-2020-0787","ts":1788886300738,"field":"exploit_available","old":"true","new":"false"},{"seq":2203,"id":"CVE-2020-0787","ts":1788882970513,"field":"exploit_available","old":"false","new":"true"},{"seq":1232,"id":"CVE-2020-0787","ts":1788882382029,"field":"exploit_available","old":"true","new":"false"},{"seq":346,"id":"CVE-2020-0787","ts":1788881816657,"field":"exploit_available","old":"false","new":"true"}]}