{"id":"CVE-2026-97743","aliases":["EUVD-2026-100290","GHSA-q268-545m-52mr"],"status":"published","title":"Microsoft Office Excel Information Disclosure Vulnerability","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00972,"percentile":0.6241,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-10-13T19:01:28Z","modified":"2026-11-10T20:45:27Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office 365 for mac"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024"},{"vendor":"microsoft","product":"microsoft_365"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97743","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97743"},{"url":"https://github.com/advisories/GHSA-q268-545m-52mr"}],"sources":{"cve":[{"id":"CVE-2026-97743","title":"Microsoft Office Excel Information Disclosure Vulnerability","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-10-13T19:01:28.095Z","modified":"2026-11-10T20:45:27.776Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T22:18:30.298108Z"}],"euvd":[{"id":"EUVD-2026-100290","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-10-13T19:01:28Z","modified":"2026-11-10T20:45:27Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T22:23:56.272923Z"}],"ghsa":[{"id":"GHSA-q268-545m-52mr","title":"Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information...","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-10-13T21:37:10Z","modified":"2026-10-13T21:37:18Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:13:20.228797Z"}],"nvd":[{"id":"CVE-2026-97743","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-10-13T19:22:11.567Z","modified":"2026-10-15T21:19:28.13Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:58.630796Z"}]}}