{"id":"CVE-2020-16877","state":"PUBLISHED","title":"Windows Elevation of Privilege Vulnerability","description":"<p>An elevation of privilege vulnerability exists when Microsoft Windows improperly handles reparse points. An attacker who successfully exploited this vulnerability could overwrite or delete a targeted file that would normally require elevated permissions.</p>\n<p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and overwrite or delete files.</p>\n<p>The security update addresses the vulnerability by correcting how Windows handles reparse points.</p>","publishedAt":"2020-10-16T22:17:34.000Z","updatedAt":"2024-11-18T16:01:34.987Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C","source":"microsoft"},"assigner":"microsoft","products":["Microsoft Windows 10 Version 1909","Microsoft Windows Server, version 1909 (Server Core installation)","Microsoft Windows 10 Version 1903 for 32-bit Systems","Microsoft Windows 10 Version 1903 for x64-based Systems","Microsoft Windows 10 Version 1903 for ARM64-based Systems","Microsoft Windows Server, version 1903 (Server Core installation)","Microsoft Windows 10 Version 2004","Microsoft Windows Server version 2004"],"affected":[{"vendor":"Microsoft","product":"Windows 10 Version 1909","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","x64-based Systems","ARM64-based Systems"]},{"vendor":"Microsoft","product":"Windows Server, version 1909 (Server Core installation)","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for 32-bit Systems","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"],"platforms":["Unknown"]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for x64-based Systems","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"],"platforms":["Unknown"]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for ARM64-based Systems","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"],"platforms":["Unknown"]},{"vendor":"Microsoft","product":"Windows Server, version 1903 (Server Core installation)","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Windows 10 Version 2004","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"]},{"vendor":"Microsoft","product":"Windows Server version 2004","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"]}],"references":["https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16877"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:39.756Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/16xxx/CVE-2020-16877.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-16877","state":"PUBLISHED","datePublished":"2020-10-16T22:17:34.000Z","dateUpdated":"2024-11-18T16:01:34.987Z","assignerShortName":"microsoft","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateReserved":"2020-08-04T00:00:00.000Z"},"containers":{"cna":{"title":"Windows Elevation of Privilege Vulnerability","descriptions":[{"lang":"en-US","value":"<p>An elevation of privilege vulnerability exists when Microsoft Windows improperly handles reparse points. An attacker who successfully exploited this vulnerability could overwrite or delete a targeted file that would normally require elevated permissions.</p>\n<p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and overwrite or delete files.</p>\n<p>The security update addresses the vulnerability by correcting how Windows handles reparse points.</p>"}],"affected":[{"vendor":"Microsoft","product":"Windows 10 Version 1909","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","x64-based Systems","ARM64-based Systems"]},{"vendor":"Microsoft","product":"Windows Server, version 1909 (Server Core installation)","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for 32-bit Systems","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"],"platforms":["Unknown"]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for x64-based Systems","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"],"platforms":["Unknown"]},{"vendor":"Microsoft","product":"Windows 10 Version 1903 for ARM64-based Systems","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"],"platforms":["Unknown"]},{"vendor":"Microsoft","product":"Windows Server, version 1903 (Server Core installation)","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Windows 10 Version 2004","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"]},{"vendor":"Microsoft","product":"Windows Server version 2004","versions":[{"version":"10.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"]}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16877","tags":["x_refsource_MISC"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C"}}],"problemTypes":[{"descriptions":[{"description":"Elevation of Privilege","lang":"en-US","type":"Impact"}]}],"providerMetadata":{"shortName":"microsoft","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateUpdated":"2023-12-31T19:19:43.262Z"},"datePublic":"2020-10-13T07:00:00.000Z"},"adp":[{"title":"CVE Program Container","references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16877","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T13:45:34.679Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-01-10T16:46:45.630550Z","id":"CVE-2020-16877","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-11-18T16:01:34.987Z"}}]}}}