Medium severity · published Feb 18, 2020
CVE-2020-8633
An issue was discovered in Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7
5.3
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZC
Zimbra Collaboration Suite · Synacor
before 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8633
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8633
Vendor Advisory
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7
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