CVE-2026-20128

HIGH

7.5

Description

A vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain DCA user privileges on an affected system. This vulnerability is due to the presence of a credential file for the DCA user on an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request and reading the file that contains the DCA password from that affected system. A successful exploit could allow the attacker to access another affected system and gain DCA user privileges. Note: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredHIGH

User InteractionNONE

Published2/25/2026

Last Modified3/20/2026

Sourcenvd

Honeypot Sightings0

Affected Products

cisco:catalyst_sd-wan_manager

Weaknesses (CWE)

CWE-257

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v(psirt@cisco.com)

IOC Correlations

No correlations recorded

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