Credential Exposure Vulnerability in Cisco Catalyst SD-WAN Manager
CVE-2026-20128

7.5HIGH

Key Information:

Vendor

Cisco
Status
Cisco Catalyst Sd-wan Manager
Vendor
CVE Published:
25 February 2026

Badges

👾 Exploit Exists

What is CVE-2026-20128?

A vulnerability in Cisco Catalyst SD-WAN Manager's Data Collection Agent (DCA) feature allows an authenticated local attacker to gain unauthorized DCA user privileges. This security issue arises from the presence of a credential file containing the DCA password on the filesystem. If an attacker has valid credentials for vManage, they can access this file and exploit the vulnerability to elevate their privileges. This could potentially allow the attacker to gain access to other affected systems.

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Affected Version(s)

Cisco Catalyst SD-WAN Manager 20.1.12

Cisco Catalyst SD-WAN Manager 19.2.1

Cisco Catalyst SD-WAN Manager 18.4.4

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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