Vulnerability in Cisco Catalyst Sd-wan Manager
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…
EPSS: 0.001 (21.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Cisco Catalyst Sd-wan Manager — versions 20.1.12, 19.2.1, 18.4.4
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: 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.
References
Frequently asked questions
- What is CVE-2026-20128?
- CVE-2026-20128 is a high-severity vulnerability in Cisco Catalyst Sd-wan Manager, classified under Storing Passwords in a Recoverable Format. CVSS score: 7.5/10. Published 2026-02-25.
- How severe is CVE-2026-20128?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-20128 known to be exploited?
- Yes. CVE-2026-20128 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-04-20), indicating it is being actively exploited.