Hackers attack WatchGuard Firebox firewalls: 120K IPs exposed and vulnerable

Cybernews • December 22, 2025

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The US Cybersecurity and Infrastructure Security Agency (CISA) released an emergency warning this bug being already exploited by threat actors.

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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.

Critical Vulnerability Exposes 125,000 WatchGuard Firebox IPs to Attack A critical vulnerability in WatchGuard Firebox firewalls has exposed approximately 125,000 IPs worldwide. The flaw, tracked as CVE-2025-14733, allows unauthenticated remote attackers to execute arbitrary code on unpatched devices. The US Cybersecurity and Infrastructure Security Agency (CISA) has issued an emergency warning regarding the exploitation of this vulnerability. 2 sources 24

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WatchGuard Firebox