CVE-2026-20128
Cisco SD-WAN Catalyst Manager vulnerability analysis and mitigation

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.


SourceNVD

Related Cisco SD-WAN Catalyst Manager vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-20127CRITICAL10
  • Cisco SD-WAN Catalyst ManagerCisco SD-WAN Catalyst Manager
  • cpe:2.3:a:cisco:catalyst_sd-wan_manager
YesYesFeb 25, 2026
CVE-2026-20129CRITICAL9.8
  • Cisco SD-WAN Catalyst ManagerCisco SD-WAN Catalyst Manager
  • cpe:2.3:a:cisco:catalyst_sd-wan_manager
NoYesFeb 25, 2026
CVE-2026-20133HIGH7.5
  • Cisco SD-WAN Catalyst ManagerCisco SD-WAN Catalyst Manager
  • cpe:2.3:a:cisco:catalyst_sd-wan_manager
NoYesFeb 25, 2026
CVE-2026-20128HIGH7.5
  • Cisco SD-WAN Catalyst ManagerCisco SD-WAN Catalyst Manager
  • cpe:2.3:a:cisco:catalyst_sd-wan_manager
NoYesFeb 25, 2026
CVE-2026-20108MEDIUM5.4
  • Cisco SD-WAN Catalyst ManagerCisco SD-WAN Catalyst Manager
  • cpe:2.3:a:cisco:catalyst_sd-wan_manager
NoNoMar 25, 2026

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