SB2026060506 - Privilege escalation in Cisco Catalyst SD-WAN Manager
Published: June 5, 2026 Updated: June 25, 2026
Security Bulletin ID
SB2026060506
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Encoding or Escaping of Output (CVE-ID: CVE-2026-20245) Exploited
CWE-ID: CWE-116 - Improper Encoding or Escaping of Output
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the CLI. A local user can upload a specially crafted file and elevate privileges on the target system.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.