Detections
Analytics

Cisco Catalyst SD-WAN Manager < 20.18 Multiple Vulnerabilities (cisco-sa-sdwan-authbp-qwCX8D4v)

critical Nessus Plugin ID 300000

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, Cisco Catalyst SD-WAN Manager is affected by multiple vulnerabilities:

 - A vulnerability could allow an unauthenticated, remote attacker to bypass authentication mechanisms and gain unauthorized access to the system. (CVE-2026-20129)

 - A vulnerability could allow an authenticated, local attacker to access sensitive information from the affected system. (CVE-2026-20128)

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCws33585, CSCws33587.

See Also

http://www.nessus.org/u?e8b27ea7

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws33585

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws33587

Plugin Details

Severity: Critical

ID: 300000

File Name: cisco-sa-sdwan-authbp-qwCX8D4v_20_18.nasl

Version: 1.1

Type: local

Family: CISCO

Published: 2/26/2026

Updated: 2/26/2026

Supported Sensors: Nessus

Risk Information

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-20129

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/o:cisco:sd-wan_firmware

Required KB Items: Cisco/Viptela/Version

Patch Publication Date: 2/25/2026

Vulnerability Publication Date: 2/25/2026

Reference Information

CVE: CVE-2026-20128, CVE-2026-20129