What is CVE-2025-20234?

CVE-2025-20234 is a medium-severity vulnerability in Cisco Secure Endpoint, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2025-06-18.

How severe is CVE-2025-20234?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Out-of-bounds Read in Cisco Secure Endpoint

CVE-2025-20234

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 durin…

Vulnerability class: Buffer Overflow

EPSS: 0.008 (75.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Cisco Secure Endpoint — versions 7.0.5, 6.2.19, 7.3.3

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

cisco-sa-clamav-udf-hmwd9nDy
ClamAV blog

Frequently asked questions

What is CVE-2025-20234?: CVE-2025-20234 is a medium-severity vulnerability in Cisco Secure Endpoint, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2025-06-18.
How severe is CVE-2025-20234?: Medium severity. CVSS v3 base score is 5.3 out of 10.