{"id":"CVE-2020-1578","aliases":["EUVD-2020-12451","GHSA-gvwc-32h3-8jq6"],"status":"published","title":"Windows Kernel Information Disclosure Vulnerability","description":"An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object.\nTo exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.\nThe security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.","severity":{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0094,"percentile":0.61195,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2020-08-17T19:13:49Z","modified":"2026-06-17T03:01:47Z","products":[{"vendor":"microsoft","product":"windows 10 version 1803"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"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"},{"vendor":"microsoft","product":"windows 10 version 2004"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server version 2004"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1909 (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-2020-1578","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1578"},{"url":"https://github.com/advisories/GHSA-gvwc-32h3-8jq6"}],"sources":{"cve":[{"id":"CVE-2020-1578","title":"Windows Kernel Information Disclosure Vulnerability","description":"An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object.\nTo exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.\nThe security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.","status":"published","published":"2020-08-17T19:13:49Z","modified":"2024-08-04T06:39:10.638Z","updated_at":"2026-11-02T14:35:56.213477Z"}],"euvd":[{"id":"EUVD-2020-12451","description":"An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object.\nTo exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.\nThe security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.","status":"published","published":"2020-08-17T19:13:49Z","modified":"2024-08-04T06:39:10Z","updated_at":"2026-11-03T03:08:12.086746Z"}],"ghsa":[{"id":"GHSA-gvwc-32h3-8jq6","title":"An information disclosure vulnerability exists in the Windows kernel that could allow an attacker...","description":"An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass, aka 'Windows Kernel Information Disclosure Vulnerability'.","status":"published","published":"2022-05-24T17:26:00Z","modified":"2024-01-04T03:30:37Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:55:19.778382Z"}],"nvd":[{"id":"CVE-2020-1578","description":"An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object.\nTo exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.\nThe security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.","status":"published","published":"2020-08-17T19:15:21.24Z","modified":"2026-06-17T03:01:47.493Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":1.9,"vector":"AV:L/AC:M/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:13.05572Z"}]}}