What is CVE-2016-7815?

CVE-2016-7815 is a medium-severity vulnerability in Cybozu Remote Service Manager, classified under Improper Certificate Validation. CVSS score: 4.2/10. Published 2017-04-28.

How severe is CVE-2016-7815?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Cybozu Remote Service Manager

CVE-2016-7815

Remote Service Manager 3.0.0 to 3.1.4 fails to verify client certificates, which may allow remote attackers to gain access to systems on the network.

Vulnerability class: Improper Certificate Validation

Published 2017-04-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (36.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.6% 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

Cybozu Remote Service Manager — versions 3.0.0, 3.0.1, 3.1.0
Cybozu, Inc. Remote Service Manager — versions 3.0.0 to 3.1.4

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

www.securityfocus.com/bid/95379 (VDB Entry, Third Party Advisory, vdb-entry)
jvn.jp/en/jp/JVN19241292/index.html (VDB Entry, Third Party Advisory, third-party-advisory)
support.cybozu.com/ja-jp/article/9689 (Vendor Advisory)

Frequently asked questions

What is CVE-2016-7815?: CVE-2016-7815 is a medium-severity vulnerability in Cybozu Remote Service Manager, classified under Improper Certificate Validation. CVSS score: 4.2/10. Published 2017-04-28.
How severe is CVE-2016-7815?: Medium severity. CVSS v3 base score is 4.2 out of 10.