CVE-2020-8633 is a medium-severity vulnerability affecting Zimbra Collaboration Suite (ZCS) versions prior to 8.8.15 Patch 7. The flaw allows a shared calendar in Outlook to remain mounted and accessible even after the grantor has revoked access, potentially leading to unauthorized information disclosure. With a CVSS score of 5.3, this vulnerability is network-exploitable with low complexity, requiring no user interaction or privileges, but its impact is limited to confidentiality. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 8.8.15CPE matchmatch criteria | cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* | ||
8.8.15CPE matchmatch criteria | cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:-:*:*:*:*:*:* | ||
8.8.15CPE matchmatch criteria | cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p1:*:*:*:*:*:* | ||
8.8.15CPE matchmatch criteria | cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p2:*:*:*:*:*:* | ||
8.8.15CPE matchmatch criteria | cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p3:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.