CVE-2021-45966

Cloud Phone System vulnerability

CVSS

9.8

EPSS

5.6%

EPSS pct

92th

Exploited

No known

An issue was discovered in Pascom Cloud Phone System before 7.20.x. In the management REST API, /services/apply in exd.pl allows remote attackers to execute arbitrary code via shell metacharacters.

Affected vendor

Pascom

Affected product

Cloud Phone System

CVSS vector

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

Weakness type (CWE)

CWE-78 — OS Command Injection

Published

2022-03-18

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 5.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2021-45966

Confirm whether Pascom Cloud Phone System is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-45966.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-45966

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-45966 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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