How severe is CVE-2025-55211?

CVE-2025-55211 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-55211 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55211?

CVE-2025-55211 affects Sangoma Freepbx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55211?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-55211 have an EU (EUVD) identifier?

Yes. CVE-2025-55211 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29256.

When was CVE-2025-55211 published?

CVE-2025-55211 was published on 2025-09-15 and last updated on 2026-06-17.

CVE-2025-55211

CVE-2025-55211 is a high-severity vulnerability in Sangoma Freepbx with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 6.3
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29256
Weakness: CWE-78
Affected product: Sangoma Freepbx
Published: 2025-09-15
Last modified: 2026-06-17

Description

FreePBX is an open-source web-based graphical user interface. From 17.0.19.11 to before 17.0.21, authenticated users of the Administrator Control Panel (ACP) can run arbitrary shell commands by maliciously changing languages of the framework module. This vulnerability is fixed in 17.0.21.

Frequently asked questions

What is CVE-2025-55211?: FreePBX is an open-source web-based graphical user interface. From 17.0.19.11 to before 17.0.21, authenticated users of the Administrator Control Panel (ACP) can run arbitrary shell commands by maliciously changing languages of the framework module. This vulnerability is fixed in 17.0.21.
How severe is CVE-2025-55211?: CVE-2025-55211 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-55211 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55211?: CVE-2025-55211 affects Sangoma Freepbx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55211?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-55211 have an EU (EUVD) identifier?: Yes. CVE-2025-55211 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29256.
When was CVE-2025-55211 published?: CVE-2025-55211 was published on 2025-09-15 and last updated on 2026-06-17.

References

https://github.com/FreePBX/security-reporting/security/advisories/GHSA-xg83-m6q5-q24h

Affected products (1)

cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:*

More vulnerabilities in Sangoma Freepbx

CVE-2014-7235 — Critical (CVSS 10.0): htdocs_ari/includes/login.php in the ARI Framework module/Asterisk Recording Interface (ARI) in FreePBX before 2.9.0.9,…
CVE-2026-46376 — Critical (CVSS 9.8): FreePBX is an open source IP PBX. From 15.0.42 to before 16.0.45 and 17.0.7, unauthenticated users may be able to…
CVE-2025-66039 — Critical (CVSS 9.8): FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. Versions are vulnerable to…
CVE-2025-57819 — Critical (CVSS 9.8): FreePBX is an open-source web-based graphical user interface. FreePBX 15, 16, and 17 endpoints are vulnerable due to…
CVE-2019-19006 — Critical (CVSS 9.8): Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control.
CVE-2026-44239 — High (CVSS 8.8): FreePBX is an open source IP PBX. Prior to 16.0.22 and 17.0.5, the Dashboard module's getcontent AJAX handler includes…

All CVEs affecting Sangoma Freepbx →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →