CiscoCVE-2026-20338
Cisco Secure Endpoint: denial of service
High7.5CVE-2026-20338 · Published Aug 7, 2026 · updated Aug 11, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Cisco Secure Endpoint Product | <= 7.0.5 | No fix yet |
| <= 6.2.19 | No fix yet | |
| <= 7.3.3 | No fix yet | |
| <= 7.2.13 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-415
More Cisco advisories
All Cisco| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 7 | Cisco Secure Endpoint: denial of service | High7.5 | No fix yet |
| Aug 7 | Cisco Secure Endpoint: denial of service | High7.5 | No fix yet |
| Aug 7 | Cisco Secure Endpoint: denial of service | High7.5 | No fix yet |
| Aug 7 | Cisco Secure Endpoint: denial of service | High7.5 | No fix yet |
| Aug 7 | Cisco Secure Endpoint: denial of service | High7.5 | No fix yet |
| Aug 7 | Cisco Secure Endpoint: denial of service | High7.5 | No fix yet |