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 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 .
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (56.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Cisco Secure Endpoint — versions 7.0.5, 6.2.19, 7.3.3
- Cisco Secure Endpoint
- Cisco Secure Endpoint Private Cloud
- Clamav
Weakness classification (CWE)
References
- sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-… (Third Party Advisory)
- blog.clamav.net/2025/06/clamav-143-and-109-security-patch.html (Vendor Advisory)
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.