CVE-2026-20304

Published Aug 5, 2026

Last updated 4 days ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-20304 identifies a set of vulnerabilities within Cisco Catalyst SD-WAN software, stemming from improper access control issues. These flaws are categorized under the Common Weakness Enumeration (CWE) CWE-284. The vulnerabilities were discovered internally by the Cisco Catalyst SD-WAN engineering team during a comprehensive security review. This CVE is part of a broader software hardening release by Cisco, which addresses multiple internally identified security concerns. The improper access control issues could potentially allow an attacker with low-level privileges to bypass security controls.

Description: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20304 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.
Source: psirt@cisco.com
NVD status: Awaiting Analysis

Risk scores

CVSS 3.1

Type: Secondary
Base score: 9.9
Impact score: 6
Exploitability score: 3.1
Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

psirt@cisco.com: CWE-284

Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.

Hype score: 1

References