CVE-2026-20216
ClamAV InstallShield File Format Processing Resource Exhaustion Vulnerability
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper handling of temporary resources during file scanning. An attacker could exploit this vulnerability by submitting a crafted InstallShield file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process and temporarily consume available system resources, resulting in a DoS condition on the affected software.
| CWE | CWE-770 |
| Vendor | cisco |
| Product | cisco secure endpoint |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Jul 1, 2026 |
| Last Updated | Jul 1, 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