CVE-2025-20234
5.3 · MEDIUMOverview
CVE-2025-20234 is a medium-severity vulnerability affecting clamav clamav. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability in Universal Disk Format (UDF) processing of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to a memory overread during UDF file scanning. An attacker could exploit this vulnerability by submitting a crafted file containing UDF content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software.
For a description of this vulnerability, see the .
Remediation
Check the references section for vendor advisories and patches from clamav. Update clamav to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| clamav | clamav | >= 1.2.0, < 1.4.3 | Affected |
| cisco | secure_endpoint | >= 0, < 1.26.1 | Affected |
| cisco | secure_endpoint_private_cloud | >= 0, < 4.2.2 | Affected |
Frequently Asked Questions
What is CVE-2025-20234?
CVE-2025-20234 is a medium-severity vulnerability affecting clamav clamav. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2025-20234?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-20234?
Check the references section for vendor advisories and patches from clamav. Update clamav to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-20234?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-20234 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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