{"id":"CVE-2020-8633","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-8633","generatedAt":"2026-10-28T00:51:41.873Z","title":"An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7.","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.","published":"2020-02-18T22:15:10.000Z","lastModified":"2026-06-17T03:26:41.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-281"],"affected":["synacor/zimbra collaboration suite"],"epss":{"score":0.0107,"percentile":0.64623,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.07%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-8633","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}