Actively exploited SonicWall zero-day patched (CVE-2025-40602)

Help Net Security

December 17, 2025 at 4:40 PM

Actively Exploited

CVE Zero-day Vulnerability Patch Privilege Escalation

Overview

SonicWall has issued a hotfix for a local privilege escalation vulnerability, identified as CVE-2025-40602, that affects its Secure Mobile Access (SMA) 1000 appliances. This flaw is currently being exploited by attackers, particularly in combination with another vulnerability, CVE-2025-23006, which allows for unauthenticated remote code execution with root privileges. Organizations using SMA 1000 appliances are at risk, as this could enable unauthorized access and control over their systems. SonicWall is urging all customers to apply the patch promptly to mitigate the risk of exploitation. The situation highlights the ongoing need for vigilance and timely updates in cybersecurity practices.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: SonicWall Secure Mobile Access (SMA) 1000 appliances
Action Required: Customers are advised to apply the hotfix provided by SonicWall to address the vulnerability.
Timeline: Newly disclosed

Original Article Summary

SonicWall has patched a local privilege escalation vulnerability (CVE-2025-40602) affecting its Secure Mobile Access (SMA) 1000 appliances and is urging customers to apply the provided hotfix, as the flaw is being leveraged by attackers. “This vulnerability was reported to be leveraged in combination with CVE-2025-23006 to achieve unauthenticated remote code execution with root privileges,” the company said. About CVE-2025-40602 SonicWall Secure Mobile Access (SMA) 1000 appliances/gateways are used by large, distributed enterprises to allow employees … More → The post Actively exploited SonicWall zero-day patched (CVE-2025-40602) appeared first on Help Net Security.

Impact

SonicWall Secure Mobile Access (SMA) 1000 appliances

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 are advised to apply the hotfix provided by SonicWall to address the vulnerability.

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 CVE, Zero-day, Vulnerability, and 2 more.

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