What’s Vulnerable › Vulnerabilities

CVE-2017-6821

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-05-23 · updated 2026-06-17
• Weakness: CWE-22

Description

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

Affected products

• Zimbra Collaboration: through 8.7.5

References

• http://www.securityfocus.com/bid/98090
• https://wiki.zimbra.com/wiki/Security_Center
• https://wiki.zimbra.com/wiki/Zimbra_Releases/8.7.6
• http://www.securityfocus.com/bid/98090
• https://wiki.zimbra.com/wiki/Security_Center
• https://wiki.zimbra.com/wiki/Zimbra_Releases/8.7.6

Get alerted when CVE-2017-6821 or the next vulnerability affects your stack