{"id":"CVE-2026-21219","aliases":["EUVD-2026-2102","GHSA-wvh3-vgpw-w4mr"],"status":"published","title":"Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability","description":"Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00383,"percentile":0.32741,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-01-13T17:56:55Z","modified":"2026-07-30T20:47:15Z","products":[{"vendor":"microsoft","product":"windows sdk"},{"vendor":"microsoft","product":"windows_software_development_kit"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21219","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21219"},{"url":"https://github.com/advisories/GHSA-wvh3-vgpw-w4mr"}],"sources":{"cve":[{"id":"CVE-2026-21219","title":"Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability","description":"Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T17:56:55.396Z","modified":"2026-07-30T20:47:15.302Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T13:41:53.237769Z"}],"euvd":[{"id":"EUVD-2026-2102","description":"Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T17:56:55Z","modified":"2026-07-30T20:47:15Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:27.233735Z"}],"ghsa":[{"id":"GHSA-wvh3-vgpw-w4mr","title":"Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.","description":"Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T18:31:11Z","modified":"2026-01-13T18:31:19Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:05:35.156514Z"}],"nvd":[{"id":"CVE-2026-21219","description":"Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T18:16:24.58Z","modified":"2026-06-17T10:18:18.027Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:04.066712Z"}]}}