CVE-2019-6980

Zimbra Collaboration Suite vulnerability

CVSS

9.8

EPSS

3.9%

EPSS pct

89th

Exploited

No known

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

Affected vendor

Synacor

Affected product

Zimbra Collaboration Suite

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-502 — Deserialization of Untrusted Data

Published

2019-05-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2019-6980

Confirm whether Synacor Zimbra Collaboration Suite is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2019-6980.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-6980

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-6980 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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