CVE-2026-20210
Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
Severity
Medium 5.4
CVSS 3.1
Exploited
Not listed
EPSS
0.002
9.4th percentile
Discovered by
Third party
Published by the vendor
Published
May 14, 2026
Assigned by cisco
Description
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.
Weakness: CWE-779
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Catalyst SD-WAN Manager | Network & Security Management | cna-assigner |
Vendor-reported affected versions (1)
- Cisco · Cisco Catalyst SD-WAN Manager