THREATPORT/VULNERABILITY/CVE-2021-45461
CRITICAL SEVERITY

CVE-2021-45461

Restapps vulnerability

CVSS
9.8
EPSS
21.7%
EPSS pct
97th
Exploited
No known
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.
Affected vendor
Sangoma
Affected product
Restapps
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-12-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 21.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2021-45461

  • Confirm whether Sangoma Restapps is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-45461.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-45461

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-45461 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2021-45461?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2021-45461.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL
CVE-2014-3114
Ezpz One Click Backup vulnerability
CRITICAL
CVE-2017-14323
Onethink vulnerability
CRITICAL
CVE-2017-14459
Awk 3131a Firmware vulnerability