Information disclosure in Synacor Zimbra Collaboration Suite

CVE-2018-15131

An issue was discovered in Synacor Zimbra Collaboration Suite 8.6.x before 8.6.0 Patch 11, 8.7.x before 8.7.11 Patch 6, 8.8.x before 8.8.8 Patch 9, and 8.8.9 before 8.8.9 Patch 3. Account number enumeration is possible via inconsistent responses for specific types of authentication requests.

Vulnerability class: Information Disclosure

EPSS: 0.019 (77.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-15131?
CVE-2018-15131 is a medium-severity vulnerability in Synacor Zimbra Collaboration Suite, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-05-30.
How severe is CVE-2018-15131?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2018-15131 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.