New critical WatchGuard Firebox firewall flaw exploited in attacks

BleepingComputer

December 19, 2025 at 10:25 AM

Actively Exploited

Overview

WatchGuard has alerted its customers about a serious remote code execution vulnerability affecting its Firebox firewalls. This flaw is currently being exploited by attackers, which raises significant security concerns for users who have not yet applied the necessary patches. The vulnerability allows unauthorized individuals to execute commands on affected devices, potentially compromising network security. Customers are urged to act swiftly to mitigate risks by updating their systems. This situation underscores the critical need for timely software updates in maintaining cybersecurity.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: WatchGuard Firebox firewalls
Action Required: Customers should apply the latest patches provided by WatchGuard for their Firebox firewalls.
Timeline: Newly disclosed

Original Article Summary

WatchGuard has warned customers to patch a critical, actively exploited remote code execution (RCE) vulnerability in its Firebox firewalls. [...]

Impact

WatchGuard Firebox firewalls

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Customers should apply the latest patches provided by WatchGuard for their Firebox firewalls. Specific patch numbers or versions were not mentioned in the article, but users are advised to check the WatchGuard support site for updates.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Vulnerability, Patch, RCE, and 1 more.

Read Original Article

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