What is CVE-2016-4872?

CVE-2016-4872 is a medium-severity vulnerability in Cybozu Office, classified under Information Disclosure. CVSS score: 4.3/10. Published 2017-04-17.

How severe is CVE-2016-4872?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Information disclosure in Cybozu Office

CVE-2016-4872

Cybozu Office 9.0.0 to 10.4.0 allows remote authenticated attackers to bypass access restrictions to view the names of unauthorized projects via a breadcrumb trail.

Vulnerability class: Information Disclosure

Published 2017-04-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.014 (70.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.7% 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 Office — versions 9.0, 9.1.0, 9.2.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

support.cybozu.com/ja-jp/article/9424 (Vendor Advisory)
jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000188.html (VDB Entry, Third Party Advisory, third-party-advisory)
www.securityfocus.com/bid/93461 (VDB Entry, Third Party Advisory, vdb-entry)
jvn.jp/en/jp/JVN07148816/index.html (VDB Entry, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2016-4872?: CVE-2016-4872 is a medium-severity vulnerability in Cybozu Office, classified under Information Disclosure. CVSS score: 4.3/10. Published 2017-04-17.
How severe is CVE-2016-4872?: Medium severity. CVSS v3 base score is 4.3 out of 10.