Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-20057

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 36.0%
CVSS Severity
CVSS v3 Score 5.8
Products affected by CVE-2026-20057


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