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CVE PROGRAM SOURCE RECORD5.8 Medium

CVE-2026-20052

Cisco Secure Firewall Threat Defense Software Snort 3 Memory Management Denial of Service Vulnerability

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Status
Published
Published
Updated
Assigning organization
cisco

Description

A vulnerability in the memory management handling for the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a logic error in memory management when a device is performing Snort 3 SSL packet inspection. An attacker could exploit this vulnerability by sending crafted SSL packets through an established connection to be parsed by the Snort 3 Detection Engine. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine unexpectedly restarts.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Secure Firewall Threat Defense (FTD) Software

Default version status: unknown

  • 7.4.0affected
  • 7.4.1affected
  • 7.4.1.1affected
  • 7.6.0affected
  • 7.4.2affected
  • 7.4.2.1affected

References