Introduction
Unauthorized access to diagnostic log files can expose sensitive network and authentication data, potentially enabling attackers to map infrastructure or escalate privileges. In August 2025, a high severity vulnerability was disclosed affecting Check Point Harmony SASE, a widely used cloud-based secure access service edge platform. This issue highlights the risks associated with support and troubleshooting workflows in security-critical environments.
About Harmony SASE and Check Point: Check Point is a leading global cybersecurity vendor with a broad portfolio of network, cloud, and endpoint security products. Harmony SASE is their cloud-native secure access service edge platform, providing remote access, zero trust, and security gateway functions for organizations worldwide. The platform is used by enterprises across finance, healthcare, technology, and other sectors to secure distributed workforces and cloud resources.
Technical Information
CVE-2025-3831 arises from the way Harmony SASE agents collect and upload log files during troubleshooting. When a user or administrator initiates a diagnostic process, the agent gathers detailed logs containing system configurations, network information, authentication events, and operational metrics. These files are uploaded to Check Point's support infrastructure for analysis.
The vulnerability centers on improper access controls or credential management in the storage or retrieval of these uploaded logs. Specifically, the issue is classified under:
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (link)
- CWE-798: Use of Hard-coded Credentials (link)
This suggests that either insufficient authorization checks or the use of static credentials allowed parties without proper permissions to access uploaded log files. The logs may contain sensitive information such as:
- Internal IP addresses and network topology
- Authentication and session data
- Configuration details of security controls
No public exploit code or detailed technical breakdown is available. The vendor advisory confirms the exposure but does not provide code snippets or specific exploit mechanisms.
Affected Systems and Versions
The vendor advisory does not specify exact affected versions or configurations. The vulnerability affects Harmony SASE agents that use the log upload feature for troubleshooting. Organizations using this functionality should assume exposure risk until further details are provided by Check Point.
Vendor Security History
Check Point has a long history as a cybersecurity vendor and has previously addressed vulnerabilities in both on-premises and cloud products. The company generally demonstrates responsible disclosure and timely patching. The exposure of diagnostic logs in a cloud support workflow is notable, as similar issues have been reported in other cloud and SASE platforms, underscoring the need for robust access controls in support processes.