What is CVE-2019-16716?

CVE-2019-16716 is a medium-severity vulnerability in Open-Xchange Appsuite, classified under Incorrect Default Permissions. CVSS score: 6.6/10. Published 2020-01-06.

How severe is CVE-2019-16716?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Vulnerability in Open-Xchange Appsuite

CVE-2019-16716

OX App Suite through 7.10.2 has Incorrect Access Control.

Published 2020-01-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.4th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Open-Xchange Appsuite

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

seclists.org/fulldisclosure/2020/Jan/7 (mailing-list, Exploit, Mailing List, Third Party Advisory)
packetstormsecurity.com/files/155813/OX-App-Suite-7.10.2-Cross-Site-Scripting-I… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2019-16716?: CVE-2019-16716 is a medium-severity vulnerability in Open-Xchange Appsuite, classified under Incorrect Default Permissions. CVSS score: 6.6/10. Published 2020-01-06.
How severe is CVE-2019-16716?: Medium severity. CVSS v3 base score is 6.6 out of 10.