What is CVE-2017-2165?

CVE-2017-2165 is a medium-severity vulnerability in Groupsession, classified under Information Disclosure. CVSS score: 6.5/10. Published 2017-06-09.

How severe is CVE-2017-2165?

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

Information disclosure in Groupsession

CVE-2017-2165

GroupSession versions 4.6.4 and earlier allows remote authenticated attackers to bypass access restrictions to obtain sensitive information such as emails via unspecified vectors.

Vulnerability class: Information Disclosure

Published 2017-06-09 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.013 (70.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Groupsession
Japan Total System Co.,ltd. Groupsession — versions versions 4.6.4 and earlier

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.securityfocus.com/bid/98719 (VDB Entry, Third Party Advisory, vdb-entry)
jvn.jp/en/jp/JVN42164352/index.html (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2017-2165?: CVE-2017-2165 is a medium-severity vulnerability in Groupsession, classified under Information Disclosure. CVSS score: 6.5/10. Published 2017-06-09.
How severe is CVE-2017-2165?: Medium severity. CVSS v3 base score is 6.5 out of 10.