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CVE-2026-20128

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CVE-2026-20128

Published: Feb 25, 2026

Modified: Apr 21, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

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

+131 more versions

Weaknesses (CWE)

CWE-257

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

References

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