CiscoCVE-2026-20345
Cisco Secure Endpoint: denial of service
High7.5CVE-2026-20345 · Published Aug 7, 2026 · updated Aug 11, 2026
A vulnerability in the GPT 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 handling of an endian conversion operation, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted GPT file 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 | <= 1.12.3 | No fix yet |
| <= 1.8.0 | No fix yet | |
| <= 1.11.1 | No fix yet | |
| <= 1.12.4 | 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-121
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 |