CVE-2025-57819
Published: August 29, 2025
Official Description
Sangoma FreePBX contains an authentication bypass vulnerability due to insufficiently sanitized user-supplied data allows unauthenticated access to FreePBX Administrator leading to arbitrary database manipulation and remote code execution.
CISA KEV Advisory
Sangoma FreePBX Authentication Bypass Vulnerability
Sangoma FreePBX contains an authentication bypass vulnerability due to insufficiently sanitized user-supplied data allows unauthenticated access to FreePBX Administrator leading to arbitrary database manipulation and remote code execution.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Risk Analysis
Sangoma FreePBX contains an authentication bypass vulnerability due to insufficiently sanitized user-supplied data, leading to unauthenticated access to the Administrator panel, arbitrary database manipulation, and remote code execution. The high EPSS score of 0.67428 indicates a high likelihood of exploitation, and its presence in CISA's KEV confirms active exploitation.
This vulnerability is actively exploited in the wild, as confirmed by its inclusion in CISA's KEV. It is remotely exploitable and allows unauthenticated access.
Sangoma FreePBX users should apply the latest security patches immediately. Implement strong input validation and restrict access to the FreePBX Administrator interface.
Technical Analysis
CVE-2025-57819 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2025-57819 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-57819 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1