Risk Letters
About Sign in ENDA

Exploited vulnerability

CVE-2026-54675

TLP:CLEAR

Sangoma FreePBX Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

FreePBX is an open source IP PBX. Prior to versions 16.0.10 and 17.0.5, a critical vulnerability exists in the sound language upload and conversion functionality that allows an authenticated attacker to perform arbitrary file writes, leading directly to remote code execution (RCE). Authentication with a known username is required. The vulnerability stems from insufficient path sanitization in the file conversion process, enabling path traversal attacks that place malicious PHP files in the web server's root directory. This issue has been patched in versions 16.0.10 and 17.0.5.

Facts

  • Vendor: Sangoma
  • Product: FreePBX
  • EPSS (probability of exploitation within 30 days): 0.7 %
  • First known exploitation: 26 October 2026
  • First seen by Risk Letters: 26 October 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD

© The Risk Letters 2026 · Privacy policy · Terms of sale · Refund policy