{"id":"DEBIAN-CVE-2026-20346","details":"A vulnerability in the PDF file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device.\r \r This vulnerability is due to improper boundary checks for content in PDF files during scanning, which may result in an out-of-bounds buffer read. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.","modified":"2026-09-14T17:02:39.182405034Z","published":"2026-08-07T17:17:03.140Z","upstream":["CVE-2026-20346"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-20346"}],"affected":[{"package":{"name":"clamav","ecosystem":"Debian:12","purl":"pkg:deb/debian/clamav?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","1.0.9+dfsg-1~deb12u1","1.2.1+dfsg-1","1.2.1+dfsg-2","1.2.1+dfsg-3","1.3.1+dfsg-1","1.3.1+dfsg-2","1.3.1+dfsg-3","1.3.1+dfsg-4","1.3.1+dfsg-5","1.4.1+dfsg-1","1.4.2+dfsg-1","1.4.3+dfsg-1","1.4.3+dfsg-1~deb11u1","1.4.3+dfsg-1~deb12u1","1.4.3+dfsg-1~deb12u2","1.4.3+dfsg-2","1.4.4+dfsg-1","1.4.4+dfsg-2","1.4.5+dfsg-1","1.4.5+dfsg-2","1.4.5+dfsg-3","1.4.6+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20346.json"}},{"package":{"name":"clamav","ecosystem":"Debian:13","purl":"pkg:deb/debian/clamav?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.3+dfsg-1","1.4.3+dfsg-2","1.4.4+dfsg-1","1.4.4+dfsg-2","1.4.5+dfsg-1","1.4.5+dfsg-2","1.4.5+dfsg-3","1.4.6+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20346.json"}},{"package":{"name":"clamav","ecosystem":"Debian:14","purl":"pkg:deb/debian/clamav?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.6+dfsg-1"}]}],"versions":["1.4.3+dfsg-1","1.4.3+dfsg-2","1.4.4+dfsg-1","1.4.4+dfsg-2","1.4.5+dfsg-1","1.4.5+dfsg-2","1.4.5+dfsg-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20346.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"}]}