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CVE-2026-20129

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CVE-2026-20129

Published: Feb 25, 2026

Modified: Mar 20, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

Description

A vulnerability in the API user authentication of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain access to an affected system as a user who has the netadmin role. The vulnerability is due to improper authentication for requests that are sent to the API. An attacker could exploit this vulnerability by sending a crafted request to the API of an affected system. A successful exploit could allow the attacker to execute commands with the privileges of the netadmin role. Note: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability. 

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)

CWE-287

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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