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CVE-2025-20393CISA KEV

Cisco Multiple Products Improper Input Validation Vulnerability

CISA lists this Cisco Multiple Products vulnerability as known exploited. The vendor's advisory has the fixed versions.

CISA KEVVendor advisoryNVD

CISA catalog record

Cisco Secure Email Gateway, Secure Email, AsyncOS Software, and Web Manager appliances contains an improper input validation vulnerability that allows threat actors to execute arbitrary commands with root privileges on the underlying operating system of an affected appliance.

Product
Multiple Products
Added to KEV
17 Dec 2025
Federal remediation due
24 Dec 2025
Known ransomware use
Not reported

What changed

First observed 14 Oct 2026

No field changes in the recorded history.

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 14 Oct 18:00 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current

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