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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.8
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
- EPSS probability
- 0.43%
- CWE
- CWE-369
- Published
- 2026-03-04
- Last modified
- 2026-03-12
Affected products
- Cisco Cisco Cyber Vision
- Cisco Cisco Cyber Vision
- Cisco Cisco Cyber Vision
- Cisco Cisco Cyber Vision
- Cisco Cisco Cyber Vision
- Cisco Cisco Cyber Vision
- Cisco Cisco Cyber Vision
- Cisco Cisco Cyber Vision
Weakness type
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