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Yet another Cisco SD-WAN 0-day under attack, and no patch in sight

ID: 974f0464-eaba-5fa0-bee1-045d5a65740b

STIX ID: report--974f0464-eaba-5fa0-bee1-045d5a65740b

Feed Name: The Register (Security)

Threat Score
90/100

Date Published: 2026-06-05

Date Updated: 2026-06-18

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### Executive Summary — Cisco Catalyst SD-WAN Manager zero-day Cisco is tracking active exploitation of a high-severity zero-day (CVE-2026-20245) in Catalyst SD-WAN Manager that allows authenticated netadmin users to upload specially crafted files to gain root privileges across on-premises, cloud, and FedRAMP deployments; Cisco has not yet released a patch and recommends mitigations and contacting TAC.

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