CVE-2020-18985
CVE-2020-18985 is a medium-severity vulnerability in Synacor Zimbra Collaboration Suite with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (47th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Synacor Zimbra Collaboration Suite
- Published:
- Last modified:
Description
An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
Frequently asked questions
- What is CVE-2020-18985?
- An issue in /domain/service/.ewell-known/caldav of Zimbra Collaboration 8.8.12 allows attackers to redirect users to any arbitrary website of their choosing.
- How severe is CVE-2020-18985?
- CVE-2020-18985 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-18985 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-18985?
- CVE-2020-18985 affects Synacor Zimbra Collaboration Suite. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-18985?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-18985 published?
- CVE-2020-18985 was published on 2021-12-15 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.12:-:*:*:*:*:*:*
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