{"id":"CVE-2018-8302","aliases":["EUVD-2018-19955","GHSA-w7c5-hj78-g4cx"],"status":"published","title":"A remote code execution vulnerability exists in Microsoft Exchange software when the software...","description":"A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka \"Microsoft Exchange Memory Corruption Vulnerability.\" This affects Microsoft Exchange Server.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.2707,"percentile":0.98058,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2018-08-15T17:00:00Z","modified":"2026-06-17T02:04:35Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8302","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/104973","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1041468","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8302"},{"url":"https://github.com/advisories/GHSA-w7c5-hj78-g4cx"}],"sources":{"cve":[{"id":"CVE-2018-8302","description":"A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka \"Microsoft Exchange Memory Corruption Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2018-08-15T17:00:00Z","modified":"2024-08-05T06:54:34.931Z","updated_at":"2026-11-02T14:35:04.172099Z"}],"euvd":[{"id":"EUVD-2018-19955","description":"A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka \"Microsoft Exchange Memory Corruption Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2018-08-15T17:00:00Z","modified":"2024-08-05T06:54:34Z","updated_at":"2026-11-03T02:40:03.749866Z"}],"ghsa":[{"id":"GHSA-w7c5-hj78-g4cx","title":"A remote code execution vulnerability exists in Microsoft Exchange software when the software...","description":"A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka \"Microsoft Exchange Memory Corruption Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2022-05-13T01:20:46Z","modified":"2023-02-01T05:06:20Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:20.778256Z"}],"nvd":[{"id":"CVE-2018-8302","description":"A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka \"Microsoft Exchange Memory Corruption Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2018-08-15T17:29:03.563Z","modified":"2026-06-17T02:04:35.65Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:36.842579Z"}]}}