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Vulnerabilities

Vulnerability · CVE-2026-54675

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

Published Sep 28, 2026 · catalog updated Oct 26, 2026 · Sangoma FreePBX Improper Limitation

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Patch now

CVE-2026-54675 is in the CISA known-exploited catalog. Confirm Sangoma FreePBX Improper Limitation against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Sangoma FreePBX Improper Limitation).

Same product and reporting

Severity
High8.7
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.66%
Remediation
Remediation guidance
Affected products
cpe sangoma/freepbx · vendor Sangoma FreePBX

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe sangoma/freepbx< 16.0.10
  • cpe sangoma/freepbx< 17.0.5
  • vendor Sangoma FreePBXversion unspecified

How to fix CVE-2026-54675

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2026-54675 is in the CISA known-exploited catalog. Confirm Sangoma FreePBX Improper Limitation against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with < 16.0.10, < 17.0.5. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-22: Path Traversal; CWE-434: Unrestricted Upload of File with Dangerous Type; CWE-73. EPSS 0.66%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 26, 2026 · VulnCheck KEV

    Detected

    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

  2. Oct 26, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2026-54675

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-54675

    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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2026-54675

    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

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 28, 2026
  • NIST NVDOct 27, 2026
  • VulnCheck KEVOct 27, 2026