CVE-2026-20128
Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-04-20. Federal 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.
Impact
Cisco Catalyst SD-WAN Manager contains a storing passwords in a recoverable format vulnerability that allows an authenticated, local attacker to gain DCA user privileges by accessing a credential file for the DCA user on the filesystem as a low-privileged user.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Catalyst Sd-Wan Manager | before 20.9.8.2 from 20.10 before 20.12.5.3 from 20.13 before 20.15.4.2 from 20.16 before 20.18 Version 20.12.6 |