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SonicWall SMA1000 Vulnerability: Critical Security Patch Released

Redhotcyber • December 18, 2025

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Discover the critical SonicWall SMA1000 vulnerability (CVE-2025-40602) and learn how to protect your systems with the latest security patch .

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

SonicWall Patches Actively Exploited Zero-Day Vulnerability CVE-2025-40602 SonicWall has released a patch for the actively exploited zero-day vulnerability CVE-2025-40602, which affects the Appliance Management Console (AMC) of their devices. This vulnerability allows for deserialization of untrusted data, posing risks to users of SonicWall products. Organizations are advised to apply the patch to mitigate potential threats. 4 sources 94

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