What is CVE-2016-4869?

CVE-2016-4869 is a medium-severity vulnerability in Cybozu Office, classified under Information Disclosure. CVSS score: 6.5/10. Published 2017-04-17.

How severe is CVE-2016-4869?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Information disclosure in Cybozu Office

CVE-2016-4869

Cybozu Office 9.0.0 to 10.4.0 allow remote attackers to obtain session information via a page where CGI environment variables are displayed.

Vulnerability class: Information Disclosure

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

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.020 (80.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Cybozu Office — versions 9.0, 9.1.0, 9.2.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.securityfocus.com/bid/97715 (VDB Entry, Third Party Advisory, vdb-entry)
jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000191.html (VDB Entry, Third Party Advisory, third-party-advisory)
jvn.jp/en/jp/JVN09736331/index.html (VDB Entry, Third Party Advisory, third-party-advisory)
support.cybozu.com/ja-jp/article/9428 (Vendor Advisory)

Frequently asked questions

What is CVE-2016-4869?: CVE-2016-4869 is a medium-severity vulnerability in Cybozu Office, classified under Information Disclosure. CVSS score: 6.5/10. Published 2017-04-17.
How severe is CVE-2016-4869?: Medium severity. CVSS v3 base score is 6.5 out of 10.