What is CVE-2018-16178?

CVE-2018-16178 is a high-severity vulnerability in Cybozu Garoon. CVSS score: 7.5/10. Published 2019-01-09.

How severe is CVE-2018-16178?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Cybozu Garoon

CVE-2018-16178

Cybozu Garoon 3.0.0 to 4.10.0 allows remote attackers to bypass access restriction to view information available only for a sign-on user via Single sign-on function.

Published 2019-01-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.014 (71.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Cybozu Garoon
Cybozu, Inc. Cybozu Garoon — versions 3.0.0 to 4.10.0

References

jvn.jp/en/jp/JVN25385698/index.html (Patch, Third Party Advisory, third-party-advisory)
kb.cybozu.support/article/35265 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-16178?: CVE-2018-16178 is a high-severity vulnerability in Cybozu Garoon. CVSS score: 7.5/10. Published 2019-01-09.
How severe is CVE-2018-16178?: High severity. CVSS v3 base score is 7.5 out of 10.