CVE-2026-20052 | Cisco Secure Firewall Threat Defense Software up to 7.6.0 Snort 3 SSL Memory Management access of memory location after end of buffer (cisco-sa-ftd-snort3ssl-FBEKYXpH)

A vulnerability, which was classified as problematic, has been found in Cisco Secure Firewall Threat Defense Software up to 7.6.0. Affected by this issue is some unknown functionality of the component Snort 3 SSL Memory Management. This manipulation causes access of memory location after end of buffer.

This vulnerability is handled as CVE-2026-20052. The attack can be initiated remotely. There is not any exploit available.

It is advisable to upgrade the affected component.