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Vulnerability record · CVE-2021-45966 · published 18 March 2022

CVE-2021-45966: Pascom cloud phone system os command injection vulnerability

Pascom · Cloud Phone System

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.

9.8 CVSS 3.1 Critical EPSS 6.0% · top 6.9% CWE-78 · OS command injection
9.8CVSS 3.1 base score, v2 10.0
6.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kerbit.io/research/read/blog/4 ExploitThird Party Advisory
https://tutorialboy24.blogspot.com/2022/03/the-story-of-3-bugs-that-lead-to.html ExploitThird Party Advisory
https://www.pascom.net/doc/en/release-notes/ Release NotesVendor Advisory
https://kerbit.io/research/read/blog/4 ExploitThird Party Advisory
https://tutorialboy24.blogspot.com/2022/03/the-story-of-3-bugs-that-lead-to.html ExploitThird Party Advisory
https://www.pascom.net/doc/en/release-notes/ Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-45966), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.