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.
Published: 2026-02-25
Score: 5.4 Medium
EPSS: 1.7% Low
KEV: Yes
Impact: Arbitrary File Overwrite leading to potential privilege escalation
Action: Immediate Patch
AI Analysis

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Remediation

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Tracking

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History

Mon, 20 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

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

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 20 Apr 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-04-20T00:00:00+00:00', 'dueDate': '2026-04-23T00:00:00+00:00'}


Mon, 09 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

ssvc

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


Wed, 04 Mar 2026 21:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:*:*:*:*:*:*:*

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'}


Subscriptions

Cisco Catalyst Sd-wan Manager
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-04-21T03:55:33.255Z

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 : Analyzed

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

Modified: 2026-04-21T11:59:56.777

Link: CVE-2026-20122

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-21T23:45:02Z

Weaknesses