{"id":"CVE-2026-66301","aliases":["EUVD-2026-56566","GHSA-7vjr-7vwf-vqhc"],"status":"published","title":"Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability","description":"Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00995,"percentile":0.62914,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2026-08-11T17:05:19Z","modified":"2026-10-30T17:21:05Z","products":[{"vendor":"microsoft","product":"dynamics_365"},{"vendor":"microsoft","product":"microsoft dynamics 365 (on-premises) version 9.1"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66301","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66301"},{"url":"https://github.com/advisories/GHSA-7vjr-7vwf-vqhc"}],"sources":{"cve":[{"id":"CVE-2026-66301","title":"Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability","description":"Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.","status":"published","published":"2026-08-11T17:05:19.979Z","modified":"2026-10-30T17:21:05.344Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:20:13.272106Z"}],"euvd":[{"id":"EUVD-2026-56566","description":"Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.","status":"published","published":"2026-08-11T17:05:19Z","modified":"2026-10-30T17:21:05Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:59:04.296921Z"}],"ghsa":[{"id":"GHSA-7vjr-7vwf-vqhc","title":"Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises...","description":"Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.","status":"published","published":"2026-08-11T18:31:41Z","modified":"2026-08-11T18:31:49Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:10:20.045782Z"}],"nvd":[{"id":"CVE-2026-66301","description":"Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.","status":"published","published":"2026-08-11T17:19:01.277Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:36.880938Z"}]}}