HIGH CISA KEV

CVE-2026-20128

CVSS v3

7.5

HIGH

EPSS Score

0.0 %

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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

CISA Known Exploited Vulnerability

Date Added: 2026-04-20
Patch Due Date: 2026-04-23
Ransomware Use: Unknown

Technical details

CVSS v3 Vector: 3.1
Published: 2026-02-25
Last Modified: 2026-04-21

Frequently asked questions

What is CVE-2026-20128?

Is CVE-2026-20128 actively exploited?

Yes. CVE-2026-20128 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 4/23/2026.

What is the CVSS score for CVE-2026-20128?

CVE-2026-20128 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.

Is CVE-2026-20128 affecting your environment?

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