CVE-2023-20032

What it is

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/"].

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

30.1% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2022-10-27 18:47 UTC ReservedThe CVE id was reserved by its CNA
2. 2023-03-01 08:15 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-06-17 05:29 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 30.1% in the next 30 days (EPSS).
• Severity: 9.8 CRITICAL (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-03-01 08:15 UTC

Last modified

2026-06-17 05:29 UTC

Exploit probability

30.1% · EPSS, next 30 days

Weakness

CWE-120 · Classic buffer overflow

Record status

Modified

Affected

• Cisco Secure Endpoint < 1.20.2
• Cisco Secure Endpoint < 1.21.1
• Cisco Secure Endpoint < 7.5.9
• Cisco Secure Endpoint < 8.1.5
• Cisco Secure Endpoint Private Cloud < 3.6.0
• Cisco Web Security Appliance < 12.5.6
• Cisco Web Security Appliance < 14.0.4-005
• Cisco Web Security Appliance < 14.5.1-013

Attack profile CVSS 3.1 · 9.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-20032.md and follow it. Check whether this project is affected by CVE-2023-20032. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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