CVE-2026-20210

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker with read-only permissions to modify configurations and perform unauthorized actions on an affected system. This vulnerability exists because of a failure to redact sensitive information within device configurations and templates. An attacker could exploit this vulnerability by elevating their read-only permissions to those of a high-privileged user. A successful exploit could allow the attacker to access or modify configuration settings within Cisco Catalyst SD-WAN Manager as a high-privileged user.

• cisco catalyst sd-wan manager (< 20.9.9.1) • cisco catalyst sd-wan manager (>= 20.10 < 20.12.5.4) • cisco catalyst sd-wan manager (>= 20.12.6 < 20.12.6.2) • cisco catalyst sd-wan manager (>= 20.13 < 20.15.4.4) • cisco catalyst sd-wan manager (>= 20.15.5 < 20.15.5.2) • cisco catalyst sd-wan manager (>= 20.16 < 20.18.2.2) • cisco catalyst sd-wan manager (>= 26.1 < 26.1.1.1) • cisco catalyst sd-wan manager 20.12.7