CiscoCVE-2026-20348
Cisco Secure Endpoint: denial of service
High7.5CVE-2026-20348 · Published Aug 7, 2026 · updated Aug 19, 2026
A vulnerability in the XAR file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in XAR files during scanning. An attacker could exploit this vulnerability by submitting a crafted file that contains XAR content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, 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-120
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 |