CVE-2021-45461
FreePBX, when restapps (aka Rest Phone Apps) 15.0.19.87, 15.0.19.88, 16.0.18.40, or 16.0.18.41 is installed, allows remote attackers to execute arbitrary code, as exploited in the wild in December 2021.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 21.5%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
FreePBX, when restapps (aka Rest Phone Apps) 15.0.19.87, 15.0.19.88, 16.0.18.40, or 16.0.18.41 is installed, allows remote attackers to execute arbitrary code, as exploited in the wild in December 2021. The fixed versions are 15.0.20 and 16.0.19.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 21.49% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- sangoma/restapps
- Source
- cve@mitre.org
EPSS 21.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://community.freepbx.org/t/0-day-freepbx-exploit/80092Exploit, Issue Tracking, Vendor Advisory
- https://community.freepbx.org/t/security-issue-potential-rest-phone-apps-rce/80109Vendor Advisory
- https://wiki.freepbx.org/display/FOP/2021-12-21+SECURITY%3A+Potential+Rest+Phone+Apps+RCEVendor Advisory
- https://community.freepbx.org/t/0-day-freepbx-exploit/80092Exploit, Issue Tracking, Vendor Advisory
- https://community.freepbx.org/t/security-issue-potential-rest-phone-apps-rce/80109Vendor Advisory
- https://wiki.freepbx.org/display/FOP/2021-12-21+SECURITY%3A+Potential+Rest+Phone+Apps+RCEVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.