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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Cisco
  • Catalyst Sd-wan Manager

No data.

No data.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v cve-icon cve-icon
History

Thu, 26 Feb 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Cisco
Cisco catalyst Sd-wan Manager
Vendors & Products Cisco
Cisco catalyst Sd-wan Manager

Wed, 25 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 25 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulnerability
Weaknesses CWE-648
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-02-25T16:14:21.256Z

Updated: 2026-02-25T18:14:27.915Z

Reserved: 2025-10-08T11:59:15.377Z

Link: CVE-2026-20122

cve-icon Vulnrichment

Updated: 2026-02-25T18:14:22.592Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-25T17:25:28.170

Modified: 2026-02-27T14:06:59.787

Link: CVE-2026-20122

cve-icon Redhat

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