Vulnerability in Cisco Cyber Vision

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 vu…

EPSS: 0.000 (13.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-20057?
CVE-2026-20057 is a medium-severity vulnerability in Cisco Cyber Vision, classified under Divide By Zero. CVSS score: 5.8/10. Published 2026-03-04.
How severe is CVE-2026-20057?
Medium severity. CVSS v3 base score is 5.8 out of 10.