CVE-2020-8633
MEDIUMCVSS 5.3/10EPSS 1.04%
Last modified
CVE-2020-8633 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 1.04% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Synacor | Zimbra Collaboration Suite | < 8.8.15 |
| Synacor | Zimbra Collaboration Suite | 8.8.15 |
References
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2020-8633?
CVE-2020-8633 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.04% probability of exploitation in the next 30 days.
How do I fix CVE-2020-8633?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-8627Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. Reason: T…
- CVE-2020-8628Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. Reason: T…
- CVE-2020-8629Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. Reason: T…
- CVE-2020-8630Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. Reason: T…
- CVE-2020-8631cloud-init through 19.4 relies on Mersenne Twister for a ran…5.5
- CVE-2020-8632In cloud-init through 19.4, rand_user_password in cloudinit/…5.5
- CVE-2020-8634Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets in…7.8
- CVE-2020-8635Wing FTP Server v6.2.3 for Linux, macOS, and Solaris sets in…7.8
- CVE-2020-8636An issue was discovered in OpServices OpMon 9.3.2 that allow…9.8
- CVE-2020-8637A SQL injection vulnerability in TestLink 1.9.20 allows atta…9.8
- CVE-2020-8638A SQL injection vulnerability in TestLink 1.9.20 allows atta…9.8
- CVE-2020-8639An unrestricted file upload vulnerability in keywordsImport.…8.8
Are you affected by CVE-2020-8633?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST