Is CVE-2025-55211 in the CISA KEV catalog?

No. CVE-2025-55211 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-55211?

CVE-2025-55211 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2025-55211?

CVE-2025-55211 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-55211

HIGH

8.8

CVSS v3

NVD

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.

CWE-78OS Command Injection

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

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

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-17.