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Vulnerability · Published Jan 22, 2025 · Assigned by cisco

CVE-2025-20128ClamAV OLE2 File Format Decryption Denial of Service Vulnerability

Medium 5.3

In plain English

A medium-severity heap buffer overflow in Cisco Secure Endpoint from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.8%top 21.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability in the Object Linking and Embedding 2 (OLE2) decryption routine 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 an integer underflow in a bounds check that allows for a heap buffer overflow read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 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 . Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.21clamav1.4.2-r0ALPINE-CVE-2025-20128
Alpine:v3.22clamav1.4.2-r0ALPINE-CVE-2025-20128
Alpine:v3.23clamav1.4.2-r0ALPINE-CVE-2025-20128
Alpine:v3.24clamav1.4.2-r0ALPINE-CVE-2025-20128
Debian:12clamav1.0.9+dfsg-1~deb12u1DEBIAN-CVE-2025-20128
Debian:13clamav1.4.2+dfsg-1DEBIAN-CVE-2025-20128
Debian:14clamav1.4.2+dfsg-1DEBIAN-CVE-2025-20128
Ubuntu:24.04:LTSclamav1.0.8+dfsg-0ubuntu0.24.04.1UBUNTU-CVE-2025-20128
Ubuntu:24.04:LTSclamav1.0.8+dfsg-0ubuntu0.24.04.1USN-7229-1

Affected products (as reported)

VendorProductVersions
Cisco Cisco Secure Endpoint 7.0.56.2.197.3.37.2.136.1.56.3.16.2.57.3.5

Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References