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FreePBX Zero-Day Exploited in the Wild, Emergency Patch Released

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A zero-day vulnerability in FreePBX (CVE-2025-57819) is actively exploited in the wild. The flaw allows unauthenticated access to the FreePBX Administrator, leading to arbitrary database manipulation and remote code execution. FreePBX versions 15, 16, and 17 are affected. The exploit has been used since at least August 21, 2025, targeting systems with inadequate IP filtering or access control lists (ACLs). Sangoma has released an emergency patch and indicators of compromise (IOCs) to help administrators detect exploitation. Users are advised to upgrade, restrict public access to the administrator control panel, and check for a known issue in the v17 'framework' module that may prevent automated update notification emails. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added the vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, requiring federal agencies to apply the fixes by September 19, 2025.

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  1. 29.08.2025 12:44 2 articles · 1mo ago

    FreePBX Zero-Day Exploited in the Wild Since August 21, 2025

    The exploit chain involves multiple steps to gain root-level access on target systems. Sangoma has released indicators of compromise (IOCs) to help administrators detect exploitation. There is a known issue in the v17 'framework' module that may prevent automated update notification emails.

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