CVE-2026-54675

high

FreePBX is an open source IP PBX.

Vendor / product: 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.

CVSS

8.8

8.8 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-09-28 18:17

Modified: 2026-10-16 18:21

NVD status: Analyzed

Last synced 1 day ago

Verified against the source API 2026-10-27 06:56 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

sangoma / freepbx ≥16.0 <16.0.10, ≥17.0 <17.0.5

Weakness classification (CWE)

CWE-22 CWE-73 CWE-434

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/FreePBX/security-reporting/security/advisories/GHSA-95gm-cmxf-cv8v

References

https://github.com/FreePBX/security-reporting/security/advisories/GHSA-95gm-cmxf-cv8v security-advisories@github.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗

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CVE-2026-54675

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Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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