CVE-2026-20337 — ClamAV ZIP File Format Processing Memory Corruption Vulnerability
A vulnerability in the zip archive parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due …
Published: 2026-08-07 · CVSS: 7.5 · CVSS 3.1
A vulnerability in the zip archive parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper boundary checks for content in zip files during scanning, which may result in an out-of-bounds write condition. An attacker could exploit this vulnerability by submitting a crafted zip file for scanning. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7