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CVE-2014-8563

Synacor Zimbra Collaboration before 8.0.9 allows plaintext command injection during STARTTLS.

9.8 Critical

Synacor Zimbra Collaboration before 8.0.9 allows plaintext command injection during STARTTLS.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.53%Up 0.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

Synacor Zimbra Collaboration before 8.0.9 allows plaintext command injection during STARTTLS.

Record
CVE-2014-8563
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-78
Updated
2026-11-02
CVE List No score

Synacor Zimbra Collaboration before 8.0.9 allows plaintext command injection during STARTTLS.

Record
CVE-2014-8563
Updated
2026-11-02
EUVDEUVD-2014-8400 No score

Synacor Zimbra Collaboration before 8.0.9 allows plaintext command injection during STARTTLS.

Record
EUVD-2014-8400
Updated
2026-11-03
GitHub AdvisoriesGHSA-972r-246w-r833 No score

Synacor Zimbra Collaboration before 8.0.9 allows plaintext command injection during STARTTLS.

Synacor Zimbra Collaboration before 8.0.9 allows plaintext command injection during STARTTLS.

Record
GHSA-972r-246w-r833
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-8563 is a critical vulnerability (CVSS 9.8) in Synacor Zimbra Collaboration Server, published January 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.53%, the 85th percentile. No source names a fixed version.

References

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