CVSS: 10.0EPSS: 0%CPEs: 10EXPL: 0CVE-2025-20260 – ClamAV PDF Scanning Buffer Overflow Vulnerability
https://notcve.org/view.php?id=CVE-2025-20260
18 Jun 2025 — A vulnerability in the PDF scanning processes of ClamAV could allow an unauthenticated, remote attacker to cause a buffer overflow condition, cause a denial of service (DoS) condition, or execute arbitrary code on an affected device. This vulnerability exists because memory buffers are allocated incorrectly when PDF files are processed. 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... • https://blog.clamav.net/2025/06/clamav-143-and-109-security-patch.html • CWE-122: Heap-based Buffer Overflow •
CVSS: 6.1EPSS: 0%CPEs: 21EXPL: 0CVE-2024-20506 – ClamAV Privilege Handling Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2024-20506
04 Sep 2024 — A vulnerability in the ClamD service module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an authenticated, local attacker to corrupt critical system files. The vulnerability is due to allowing the ClamD process to write to its log file while privileged without checking if the logfile has been replaced with a symbolic link. An attacker could exploit... • https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 7.8EPSS: 0%CPEs: 21EXPL: 0CVE-2024-20505 – ClamAV Memory Handling DoS
https://notcve.org/view.php?id=CVE-2024-20505
04 Sep 2024 — A vulnerability in the PDF parsing module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to an out of bounds read. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an ... • https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html • CWE-125: Out-of-bounds Read •