CVE-2017-6821

CRITICAL 9.8CVE-2017-6821 · Published 23/05/2017 · updated 17/06/2026

In short

CVE-2017-6821 is a CRITICAL (CVSS 9.8) vulnerability affecting zimbra collaboration suite (synacor).
Chance of exploitation in the next 30 days (EPSS): 3.8%, higher than 90.1% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
zimbra collaboration suite synacor	`≤ 8.7.5`	No fix yet

Description

Directory traversal vulnerability in Zimbra Collaboration Suite (aka ZCS) before 8.7.6 allows attackers to have unspecified impact via unknown vectors.

References

securityfocus.com/bid/98090 · Third Party Advisory
wiki.zimbra.com/wiki/Security_Center · Vendor Advisory
wiki.zimbra.com/wiki/Zimbra_Releases/8.7.6 · Release Notes

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Package

Affected versions

Patched versions

zimbra collaboration suite

synacor

≤ 8.7.5

No fix yet

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