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CVE-2026-20304

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CVSS

9.9

Reports

3

First seen

Aug 6, 2026

Last seen

Aug 13, 2026

Affected product

Cisco products (multiple)

Recent reports

Cisco Catalyst SD-WAN Contains 4 High-Risk Security Vulnerabilities

NICS TaiwanAug 13, 2026 Critical

Cisco Patches 12 SD-WAN and IOS XE Vulnerabilities, Including Critical CVSS 9.9 Flaws

The Hacker NewsAug 6, 2026 High

Multiple Vulnerabilities in Cisco Products – Security Advisory

GovCERT.HKAug 6, 2026

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