{"id":"CVE-2020-1261","aliases":["EUVD-2020-12140","GHSA-6xvg-j5g8-mf25"],"status":"published","title":"An information disclosure vulnerability exists in the way Windows Error Reporting (WER) handles...","description":"An information disclosure vulnerability exists in the way Windows Error Reporting (WER) handles objects in memory, aka 'Windows Error Reporting Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1263.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01296,"percentile":0.70549,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2020-06-09T19:43:43Z","modified":"2026-06-17T03:00:56Z","products":[{"vendor":"microsoft","product":"windows"},{"vendor":"microsoft","product":"windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1909 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1909 for arm64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1909 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 2004 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 2004 for arm64-based systems"},{"vendor":"microsoft","product":"windows 10 version 2004 for x64-based systems"},{"vendor":"microsoft","product":"windows server"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1909 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 2004 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1261","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1261"},{"url":"https://github.com/advisories/GHSA-6xvg-j5g8-mf25"}],"sources":{"cve":[{"id":"CVE-2020-1261","description":"An information disclosure vulnerability exists in the way Windows Error Reporting (WER) handles objects in memory, aka 'Windows Error Reporting Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1263.","status":"published","published":"2020-06-09T19:43:43Z","modified":"2024-08-04T06:32:01.245Z","updated_at":"2026-11-02T14:35:56.638833Z"}],"euvd":[{"id":"EUVD-2020-12140","description":"An information disclosure vulnerability exists in the way Windows Error Reporting (WER) handles objects in memory, aka 'Windows Error Reporting Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1263.","status":"published","published":"2020-06-09T19:43:43Z","modified":"2024-08-04T06:32:01Z","updated_at":"2026-11-03T03:08:14.784772Z"}],"ghsa":[{"id":"GHSA-6xvg-j5g8-mf25","title":"An information disclosure vulnerability exists in the way Windows Error Reporting (WER) handles...","description":"An information disclosure vulnerability exists in the way Windows Error Reporting (WER) handles objects in memory, aka 'Windows Error Reporting Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1263.","status":"published","published":"2022-05-24T17:19:54Z","modified":"2023-01-29T05:02:47Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:45:10.011414Z"}],"nvd":[{"id":"CVE-2020-1261","description":"An information disclosure vulnerability exists in the way Windows Error Reporting (WER) handles objects in memory, aka 'Windows Error Reporting Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1263.","status":"published","published":"2020-06-09T20:15:17.13Z","modified":"2026-06-17T03:00:56.803Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:05.962132Z"}]}}