Cisco Unified Communications Manager Arbitrary File Deletion Vulnerability

published 2022-08-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-26066

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to delete arbitrary files from an affected system. This vulnerability exists because the affected software does not properly validate HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected software. A successful exploit could allow the attacker to delete arbitrary files from the affected system.

Patch / fix

fixed in 1

cisco unified_communications_manager 14su2

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-11-01)

Exploit prediction

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

Cisco Cisco Unified Communications Manager

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-file-delete-N2VPmOnE
vendor-advisory

Sources

CVE List CVE-2022-20816
NVD CVE-2022-20816

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Summary