CVE-2026-20122

A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system. This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:::::::*

History

04 Mar 2026, 21:25

Type	Values Removed	Values Added
First Time		Cisco Cisco catalyst Sd-wan Manager
References	~~() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v -~~	() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v - Vendor Advisory
CPE		cpe:2.3:a:cisco:catalyst_sd-wan_manager:::::::: cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:::::::*

25 Feb 2026, 17:25

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-25 17:25

Updated : 2026-03-04 21:25

NVD link : CVE-2026-20122

Mitre link : CVE-2026-20122

CVE.ORG link : CVE-2026-20122

JSON object : View

Products Affected

cisco

catalyst_sd-wan_manager

CWE

CWE-648

Incorrect Use of Privileged APIs

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