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% (36th 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% (36th 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% (36th 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:*:*:*:*:*:*:*:*

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