Vulnerability Intelligence Report
Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability
CVE-2026-20128
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 KEV
SSVC: Active Exploitation
CVSS Base Score
7.5
HIGH
Exploitability:0.9
Impact Score:6.1
EPSS Probability:5.27%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-257 ↗Storing Passwords in a Recoverable Format
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Cisco | Cisco Catalyst SD-WAN Manager | 20.1.12 (affected), 19.2.1 (affected), 18.4.4 (affected), 18.4.5 (affected), 20.1.1.1 (affected), 20.1.1 (affected), 19.3.0 (affected), 19.2.2 (affected), 19.2.099 (affected), 18.3.6 (affected), 18.3.7 (affected), 19.2.0 (affected), 18.3.8 (affected), 19.0.0 (affected), 19.1.0 (affected), 18.4.302 (affected), 18.4.303 (affected), 19.2.097 (affected), 19.2.098 (affected), 17.2.10 (affected), 18.3.6.1 (affected), 19.0.1a (affected), 18.2.0 (affected), 18.4.3 (affected), 18.4.1 (affected), 17.2.8 (affected), 18.3.3.1 (affected), 18.4.0 (affected), 18.3.1 (affected), 17.2.6 (affected), 17.2.9 (affected), 18.3.4 (affected), 17.2.5 (affected), 18.3.1.1 (affected), 18.3.5 (affected), 18.4.0.1 (affected), 18.3.3 (affected), 17.2.7 (affected), 18.3.0 (affected), 19.2.3 (affected), 18.4.501_ES (affected), 20.3.1 (affected), 20.1.2 (affected), 19.2.929 (affected), 19.2.31 (affected), 20.3.2 (affected), 19.2.32 (affected), 20.3.2.1 (affected), 20.3.2.1_927 (affected), 18.4.6 (affected), 20.3.2_928 (affected), 20.3.2_929 (affected), 20.4.1.0.1 (affected), 20.3.2.1_930 (affected), 19.2.4 (affected), 20.5.0.1.1 (affected), 20.4.1.1 (affected), 20.3.3 (affected), 19.2.4.0.1 (affected), 20.3.2_937 (affected), 20.5.1 (affected), 20.1.3 (affected), 20.3.3.0.4 (affected), 20.3.3.1.2 (affected), 20.3.3.1.1 (affected), 20.4.1.2 (affected), 20.3.3.0.2 (affected), 20.4.1.1.5 (affected), 20.4.1.0.02 (affected), 20.3.3.1.7 (affected), 20.3.3.1.5 (affected), 20.5.1.0.1 (affected), 20.3.3.1.10 (affected), 20.3.3.0.8 (affected), 20.4.2 (affected), 20.3.4 (affected), 20.3.3.0.14 (affected), 19.2.4.0.8 (affected), 19.2.4.0.9 (affected), 20.3.4.0.1 (affected), 20.3.2.0.5 (affected), 20.5.1.0.2 (affected), 20.6.1.1 (affected), 20.6.0.18.3 (affected), 20.3.2.0.6 (affected), 20.6.0.18.4 (affected), 20.4.2.0.2 (affected), 20.3.3.0.16 (affected), 20.6.1.0.1 (affected), 20.3.4.0.6 (affected), 20.7.1EFT2 (affected), 20.3.4.0.9 (affected), 20.3.4.0.11 (affected), 20.3.3.0.18 (affected), 20.6.2.1 (affected), 20.3.4.1 (affected), 20.4.2.1 (affected), 20.4.2.1.1 (affected), 20.3.4.1.1 (affected), 20.3.813 (affected), 20.3.4.0.19 (affected), 20.4.2.2.1 (affected), 20.5.1.2 (affected), 20.3.814 (affected), 20.4.2.2 (affected), 20.6.2.2 (affected), 20.3.4.2.1 (affected), 20.3.4.1.2 (affected), 20.3.4.0.20 (affected), 20.6.2.2.3 (affected), 20.4.2.2.2 (affected), 20.6.2.0.4 (affected), 20.3.4.0.24 (affected), 20.6.2.2.7 (affected), 20.3.4.2.2 (affected), 20.4.2.2.4 (affected), 20.3.5.0.8 (affected), 20.3.5.0.9 (affected), 20.3.5.0.7 (affected), 20.6.3.0.2 (affected), 20.9.1EFT2 (affected), 20.3.6 (affected), 20.3.7 (affected), 20.4.2.3 (affected), 20.3.5.1 (affected), 20.3.4.3 (affected), 20.3.3.2 (affected), 20.3.7.1 (affected), 20.3.4.0.25 (affected), 20.6.2.2.4 (affected), 20.6.1.2 (affected), 20.1.3.1 (affected), 20.6.5.1.4 (affected), 20.3.8 (affected), 20.12.501 (affected), 26.1.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Cisco Systems, Inc. · Hosted Service · USA |
| Reserved | 2025-10-08T11:59:15 |
| Published | 2026-02-25T16:14:12 |
| Last Updated | 2026-04-21T03:55:31 |
Community Chatter & Buzz