VULNERABILITY INTELLIGENCE

CVE-2026-20057

CVSS score5.8 MEDIUM
EPSS probability0.49%
CISA KEVNot currently listed
Published2026-03-04
Last modified2026-08-20
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Description

Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications (VBA) feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash.    This vulnerability is due to lack of proper error checking when decompressing VBA data. An attacker could exploit this vulnerability by sending a crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to unexpectedly restart causing a a denial of service (DoS) condition.

Weakness classification

  • psirt@cisco.com: CWE-369

Primary references