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Vulnerability record · CVE-2021-45967 · published 18 March 2022

CVE-2021-45967: Pascom cloud phone system path traversal vulnerability

Pascom · Cloud Phone System

An issue was discovered in Pascom Cloud Phone System before 7.20.x. A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints.

9.8 CVSS 3.1 Critical EPSS 21% · top 2.5% CWE-22 · Path traversal
9.8CVSS 3.1 base score, v2 7.5
21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Pascom Cloud Phone System before 7.20.x. A configuration error between NGINX and a backend Tomcat server leads to a path traversal in the Tomcat server, exposing unintended endpoints.

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

Affected products

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

References

LinkTags
https://kerbit.io/research/read/blog/4 ExploitPatchThird Party Advisory
https://tutorialboy24.blogspot.com/2022/03/the-story-of-3-bugs-that-lead-to.html ExploitPatchThird Party Advisory
https://www.pascom.net/doc/en/release-notes/ Release NotesVendor Advisory
https://www.pascom.net/doc/en/release-notes/pascom19/ Release NotesVendor Advisory
https://kerbit.io/research/read/blog/4 ExploitPatchThird Party Advisory
https://tutorialboy24.blogspot.com/2022/03/the-story-of-3-bugs-that-lead-to.html ExploitPatchThird Party Advisory
https://www.pascom.net/doc/en/release-notes/ Release NotesVendor Advisory
https://www.pascom.net/doc/en/release-notes/pascom19/ 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-2021-45967), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.