CVE-2026-20053
Published: Mar 4, 2026
Modified: Mar 4, 2026
CVSS v3.1
5.8
Description
Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper range checking when decompressing VBA data, which is user controlled. An attacker could exploit this vulnerability by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause an overflow of heap data, which could cause a DoS condition.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Cyber Vision | affected 3.0.0affected 3.0.2affected 3.0.3affected 3.0.1affected 3.1.0+49 more 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 17.12.1aaffected 17.9.4affected 17.12.2affected 17.13.1aaffected 17.12.3+24 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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