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.
CISA Known Exploited Vulnerability
Date added 2026-04-20 | Due date 2026-04-23
Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
Problem types
Storing Passwords in a Recoverable Format
Product status
20.1.12
19.2.1
18.4.4
18.4.5
20.1.1.1
20.1.1
19.3.0
19.2.2
19.2.099
18.3.6
18.3.7
19.2.0
18.3.8
19.0.0
19.1.0
18.4.302
18.4.303
19.2.097
19.2.098
17.2.10
18.3.6.1
19.0.1a
18.2.0
18.4.3
18.4.1
17.2.8
18.3.3.1
18.4.0
18.3.1
17.2.6
17.2.9
18.3.4
17.2.5
18.3.1.1
18.3.5
18.4.0.1
18.3.3
17.2.7
18.3.0
19.2.3
18.4.501_ES
20.3.1
20.1.2
19.2.929
19.2.31
20.3.2
19.2.32
20.3.2.1
20.3.2.1_927
18.4.6
20.3.2_928
20.3.2_929
20.4.1.0.1
20.3.2.1_930
19.2.4
20.5.0.1.1
20.4.1.1
20.3.3
19.2.4.0.1
20.3.2_937
20.5.1
20.1.3
20.3.3.0.4
20.3.3.1.2
20.3.3.1.1
20.4.1.2
20.3.3.0.2
20.4.1.1.5
20.4.1.0.02
20.3.3.1.7
20.3.3.1.5
20.5.1.0.1
20.3.3.1.10
20.3.3.0.8
20.4.2
20.3.4
20.3.3.0.14
19.2.4.0.8
19.2.4.0.9
20.3.4.0.1
20.3.2.0.5
20.5.1.0.2
20.6.1.1
20.6.0.18.3
20.3.2.0.6
20.6.0.18.4
20.4.2.0.2
20.3.3.0.16
20.6.1.0.1
20.3.4.0.6
20.7.1EFT2
20.3.4.0.9
20.3.4.0.11
20.3.3.0.18
20.6.2.1
20.3.4.1
20.4.2.1
20.4.2.1.1
20.3.4.1.1
20.3.813
20.3.4.0.19
20.4.2.2.1
20.5.1.2
20.3.814
20.4.2.2
20.6.2.2
20.3.4.2.1
20.3.4.1.2
20.3.4.0.20
20.6.2.2.3
20.4.2.2.2
20.6.2.0.4
20.3.4.0.24
20.6.2.2.7
20.3.4.2.2
20.4.2.2.4
20.3.5.0.8
20.3.5.0.9
20.3.5.0.7
20.6.3.0.2
20.9.1EFT2
20.3.6
20.3.7
20.4.2.3
20.3.5.1
20.3.4.3
20.3.3.2
20.3.7.1
20.3.4.0.25
20.6.2.2.4
20.6.1.2
20.1.3.1
20.6.5.1.4
20.3.8
20.12.501
26.1.1
References
www.cisa.gov/...erabilities-catalog?field_cve=CVE-2026-20128
sec.cloudapps.cisco.com/...ry/cisco-sa-sdwan-authbp-qwCX8D4v (cisco-sa-sdwan-authbp-qwCX8D4v)