What is CVE-2017-7664?

CVE-2017-7664 is a critical-severity vulnerability in Apache Openmeetings, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 10.0/10. Published 2017-07-17.

How severe is CVE-2017-7664?

Critical severity. CVSS v3 base score is 10.0 out of 10.

XXE in Apache Openmeetings

CVE-2017-7664

Uploaded XML documents were not correctly validated in Apache OpenMeetings 3.1.0.

Vulnerability class: XXE (XML External Entity)

Published 2017-07-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (83.1th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Apache Openmeetings — versions 3.1.0, 3.1.1, 3.1.2
Apache Software Foundation Openmeetings — versions 3.1.0

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

www.securityfocus.com/bid/99576 (VDB Entry, Third Party Advisory, vdb-entry)
markmail.org/message/cwr552iapmhukb45 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2017-7664?: CVE-2017-7664 is a critical-severity vulnerability in Apache Openmeetings, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 10.0/10. Published 2017-07-17.
How severe is CVE-2017-7664?: Critical severity. CVSS v3 base score is 10.0 out of 10.