{"id":"DEBIAN-CVE-2025-20128","details":"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.\r \r 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.\r For a description of this vulnerability, see the .\r Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.","modified":"2026-09-01T16:06:09.410335707Z","published":"2025-01-22T17:15:12.583Z","upstream":["CVE-2025-20128"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-20128"}],"affected":[{"package":{"name":"clamav","ecosystem":"Debian:12","purl":"pkg:deb/debian/clamav?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.9+dfsg-1~deb12u1"}]}],"versions":["1.0.1+dfsg-2","1.0.2+dfsg-1","1.0.2+dfsg-1~deb12u1","1.0.3+dfsg-1","1.0.3+dfsg-1~deb12u1","1.0.3+dfsg-2","1.0.4+dfsg-1","1.0.5+dfsg-1","1.0.5+dfsg-1.1","1.0.5+dfsg-1~deb12u1","1.0.6+dfsg-1","1.0.7+dfsg-1~deb11u1","1.0.7+dfsg-1~deb11u2","1.0.7+dfsg-1~deb12u1","1.0.9+dfsg-1~deb11u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-20128.json"}},{"package":{"name":"clamav","ecosystem":"Debian:13","purl":"pkg:deb/debian/clamav?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.2+dfsg-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-20128.json"}},{"package":{"name":"clamav","ecosystem":"Debian:14","purl":"pkg:deb/debian/clamav?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.2+dfsg-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-20128.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}