Is CVE-2021-32744 actively exploited?

No active exploitation of CVE-2021-32744 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-32744 be exploited remotely?

Yes. CVE-2021-32744 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-32744?

CVE-2021-32744 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2021-32744

HIGH

CVE-2021-32744

CWE-639Published: July 21, 2021· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

Collabora Online is a collaborative online office suite. In versions prior to 4.2.17-1 and version 6.4.9-5, unauthenticated attackers are able to gain access to files which are currently opened by other users in the Collabora Online editor. For successful exploitation the attacker is required to guess the file identifier - the predictability of this file identifier is dependent on external file-storage implementations (this is a potential "IDOR" - Insecure Direct Object Reference - vulnerability). Versions 4.2.17-1 and 6.4.9-5 contain patches for this issue. There is no known workaround except updating the Collabora Online application to one of the patched releases.

NVD Source

Technical Analysis

CVE-2021-32744 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.