Is CVE-2026-20058 actively exploited?

CVE-2026-20058 has no public evidence of in-the-wild exploitation as of 2026-03-05.

What is the CVSS score for CVE-2026-20058?

CVE-2026-20058 has a CVSS score of 5.8 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

How do I patch CVE-2026-20058?

Patch guidance is available from Cisco security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-20058.

Which products are affected by CVE-2026-20058?

1 product: Cisco Awaiting Analysis.

CVE-2026-20058 - remediation guidance & executive summary

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: changed
Confidentiality: none
Integrity: none
Availability: low
Weaknesses: CWE-786

Metadata

Primary Vendor: CISCO
Published: 3/4/2026
Last Modified: 3/5/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

Cisco : Awaiting Analysis

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-20058. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-20058

View on NIST NVD

CVE-2026-20058 vulnerability