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CVE-2026-20122

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CVE-2026-20122

Published: Feb 25, 2026

Modified: Apr 21, 2026

PUBLISHED

CVSS v3.1

5.4

MEDIUM

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.

VendorProductVersions

Cisco

Cisco Catalyst SD-WAN Manager

affected
20.1.12
affected
19.2.1
affected
18.4.4
affected
18.4.5
affected
20.1.1.1

+330 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

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