What is CVE-2015-6566?

CVE-2015-6566 is a high-severity vulnerability in Zarafa Collaboration Platform, classified under Improper Link Resolution Before File Access. CVSS score: 8.4/10. Published 2016-01-11.

How severe is CVE-2015-6566?

High severity. CVSS v3 base score is 8.4 out of 10.

Vulnerability in Zarafa Collaboration Platform

CVE-2015-6566

zarafa-autorespond in Zarafa Collaboration Platform (ZCP) before 7.2.1 allows local users to gain privileges via a symlink attack on /tmp/zarafa-vacation-*.

Published 2016-01-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Zarafa Collaboration Platform
Fedoraproject Fedora — versions 21

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

jira.zarafa.com/browse/ZCP-13572
lists.fedoraproject.org/pipermail/package-announce/2015-November/172605.html (vendor-advisory)
jira.zarafa.com/browse/ZCP-13533
download.zarafa.com/community/final/7.2/final-changelog-7.2.txt (Vendor Advisory)

Frequently asked questions

What is CVE-2015-6566?: CVE-2015-6566 is a high-severity vulnerability in Zarafa Collaboration Platform, classified under Improper Link Resolution Before File Access. CVSS score: 8.4/10. Published 2016-01-11.
How severe is CVE-2015-6566?: High severity. CVSS v3 base score is 8.4 out of 10.