Vulnerability in Synacor Zimbra Collaboration Suite

CVE-2020-8633

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 · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-8633: held from 0.011 to 0.011.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-8633?
CVE-2020-8633 is a medium-severity vulnerability in Synacor Zimbra Collaboration Suite, classified under Improper Preservation of Permissions. CVSS score: 5.3/10. Published 2020-02-18.
How severe is CVE-2020-8633?
Medium severity. CVSS v3 base score is 5.3 out of 10.