Is CVE-2023-20032 actively exploited?

No active exploitation of CVE-2023-20032 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-20032 be exploited remotely?

Yes. CVE-2023-20032 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-20032?

CVE-2023-20032 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-20032

CWE-120Published: March 1, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed:

A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code.

This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write. An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition.

For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].

NVD Source

Technical Analysis

CVE-2023-20032 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.