CVE-2026-20058
Published: Mar 4, 2026
Modified: Mar 4, 2026
CVSS v3.1
5.8
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | affected 7.2.0affected 7.2.0.1affected 7.2.1affected 7.3.0affected 7.2.2+32 more versions |
Cisco | Cisco UTD SNORT IPS Engine Software | affected 17.9.3aaffected 17.12.1aaffected 17.12.2affected 17.13.1aaffected 17.9.5a+25 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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