CVE-2026-20058
Medium · 5.8CVSS
5.8
EPSS
0.4%
Published
Mar 4, 2026
CISA due date
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The record
Multiple Cisco products are affected by vulnerabilities in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. These vulnerabilities are due to improper error checking when decompressing VBA data. An attacker could exploit these vulnerabilities by sending 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 DoS condition.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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