CVE-2026-20216
ClamAV InstallShield File Format Processing Resource Exhaustion Vulnerability
Severity
High 7.5
CVSS 3.1
Exploited
Not listed
EPSS
0.006
46.1th percentile
Discovered by
Third party
Vendor-published field
Published
Jul 1, 2026
Assigned by cisco
Description
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.
Weakness: CWE-770
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Secure Endpoint | Endpoint / EDR | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Secure Endpoint