Is CVE-2017-1000221 actively exploited?

No active exploitation of CVE-2017-1000221 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-1000221 be exploited remotely?

Yes. CVE-2017-1000221 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-1000221?

CVE-2017-1000221 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2017-1000221

CWE-732Published: November 17, 2017· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

In Opencast 2.2.3 and older if user names overlap, the Opencast search service used for publication to the media modules and players will handle the access control incorrectly so that users only need to match part of the user name used for the access restriction. For example, a user with the role ROLE_USER will have access to recordings published only for ROLE_USER_X.

NVD Source

Technical Analysis

CVE-2017-1000221 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.