Deserialization in Synacor Zimbra_collaboration_suite

CVE-2019-6980

Synacor Zimbra Collaboration Suite 8.7.x through 8.8.11 allows insecure object deserialization in the IMAP component.

Vulnerability class: Insecure Deserialization

EPSS: 0.039 (89.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-6980?
CVE-2019-6980 is a critical-severity vulnerability in Synacor Zimbra_collaboration_suite, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-05-29.
How severe is CVE-2019-6980?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-6980 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.