{"id":"CVE-2020-8633","aliases":["EUVD-2020-29481","GHSA-j9q2-5fvv-rjgp"],"status":"published","title":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors...","description":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors revoked a shared calendar in Outlook, the calendar stayed mounted and accessible.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0107,"percentile":0.6528,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-281"],"published":"2020-02-18T21:17:08Z","modified":"2026-10-24T14:24:39Z","products":[{"vendor":"synacor","product":"zimbra_collaboration_suite"}],"references":[{"url":"https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8633"},{"url":"https://github.com/advisories/GHSA-j9q2-5fvv-rjgp"}],"sources":{"cve":[{"id":"CVE-2020-8633","description":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors revoked a shared calendar in Outlook, the calendar stayed mounted and accessible.","status":"published","published":"2020-02-18T21:17:08Z","modified":"2024-08-04T10:03:46.263Z","updated_at":"2026-11-02T14:35:50.88562Z"}],"euvd":[{"id":"EUVD-2020-29481","description":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors revoked a shared calendar in Outlook, the calendar stayed mounted and accessible.","status":"published","published":"2020-02-18T21:17:08Z","modified":"2024-08-04T10:03:46Z","updated_at":"2026-11-03T03:07:56.602123Z"}],"ghsa":[{"id":"GHSA-j9q2-5fvv-rjgp","title":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors...","description":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors revoked a shared calendar in Outlook, the calendar stayed mounted and accessible.","status":"published","published":"2022-05-24T17:09:17Z","modified":"2023-01-29T05:01:35Z","updated_at":"2026-11-02T14:44:51.691892Z"}],"nvd":[{"id":"CVE-2020-8633","description":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors revoked a shared calendar in Outlook, the calendar stayed mounted and accessible.","status":"published","published":"2020-02-18T22:15:10.09Z","modified":"2026-06-17T03:26:41.043Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-281"],"updated_at":"2026-11-02T14:05:54.796125Z"}],"osv":[{"id":"CVE-2020-8633","description":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7. When grantors revoked a shared calendar in Outlook, the calendar stayed mounted and accessible.","status":"published","published":"2020-02-18T22:15:10.09Z","modified":"2026-10-24T14:24:39.26957166Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:17.663289Z"}]}}