CVE-2026-20338
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 memory handling when processing content in zip files during scanning. 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 as a result of a memory double-free, resulting in a DoS condition on the affected software.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.47%
- CWE
- CWE-415
- Published
- 2026-08-07
- Last modified
- 2026-08-07
Affected products
- Cisco Cisco Secure Endpoint
- Cisco Cisco Secure Endpoint
- Cisco Cisco Secure Endpoint
- Cisco Cisco Secure Endpoint
- Cisco Cisco Secure Endpoint
- Cisco Cisco Secure Endpoint
- Cisco Cisco Secure Endpoint
- Cisco Cisco Secure Endpoint
Weakness type
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