CVE-2026-20337
ClamAV ZIP File Format Processing Memory Corruption Vulnerability
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-120 |
| Vendor | cisco |
| Product | cisco secure endpoint |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Aug 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Cisco / Cisco Secure Endpoint
7.0.5 6.2.19 7.3.3 7.2.13 6.1.5 6.3.1 6.2.5 7.3.5 6.2.1 7.2.7 7.1.1 6.3.5 6.2.9 7.3.1 6.1.7 7.2.11 7.2.3 7.1.5 6.3.3 7.3.9 6.2.3 6.1.9 6.0.9 7.2.5 6.0.7 6.3.7 1.12.3 1.8.0 1.11.1 1.12.4 1.10.0 1.12.0 1.8.1 1.10.1 1.12.1 1.12.6 1.14.0 1.10.2 1.12.7 1.12.2 1.6.0 1.9.0 1.11.0 1.7.0 1.13.0 1.8.4 1.13.1 1.9.1 1.12.5 1.13.2 8.1.7.21512 8.1.7 8.1.5 8.1.3.21242 8.1.3 8.1.5.21322 8.1.7.21417 1.14.1 1.15.1 1.15.2 1.15.3 1.15.4 1.15.5 1.15.6 1.16.0 1.16.1 1.16.2 1.16.3 1.18.0 1.18.1 1.20.0 1.21.0 1.21.1 1.21.2 1.21.3 1.22.0 1.22.1 1.22.2 1.22.3 1.22.4 1.24.0 1.24.1 1.24.2 1.24.3 1.24.4 1.26.0 1.24.5 1.26.1 1.27.0 1.15.0 1.17.0 1.17.1 1.17.2 1.19.0 1.20.1 1.20.2 1.20.3 1.20.4 1.20.5 1.20.6 1.23.0 1.23.1 1.20.7 1.20.8 1.25.0 1.25.1 1.25.2 1.27.1 1.27.2 7.3.13 7.3.15 7.4.1 7.4.1.20425 7.4.1.20439 7.4.3 7.4.3.20679 7.4.5 7.5.1.20813 7.5.1.20833 7.5.3 7.5.5 8.0.1.21160 8.0.1.21164 7.5.7 7.5.9 7.5.11 8.1.7.21585 7.5.13.21586 7.5.13.21598 8.2.1.21612 8.2.1.21650 7.5.15.21611 7.5.17.21680 8.2.3.30119 8.2.4.30130 8.4.0 7.5.19 8.4.1.30298 8.4.2.30317 8.4.1.30307 7.5.20 8.4.3 8.4.4.30419 8.4.4.30467 7.5.21.21732 8.4.5.30483