CVE-2026-20245—Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability

Vulnerability Name

Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability

Description

Cisco Catalyst SD-WAN Manager formerly SD-WAN vManage contains an improper encoding or escaping of output vulnerability. This vulnerability could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx
• https://nvd.nist.gov/vuln/detail/CVE-2026-20245

Related News Articles

• Cisco Catalyst SD-WAN Zero-Day CVE-2026-20245 Exploited to Gain Root AccessJune 25, 2026
• Mandiant reveals how Cisco SD-WAN zero-day attacks gained root accessJune 24, 2026
• Cisco Releases Security Updates for Actively Exploited SD-WAN Manager FlawJune 16, 2026
• Cisco fixes SD-WAN vManage flaw exploited in zero-day attacksJune 15, 2026
• CISA Adds Cisco, Chrome, and Arista Flaws to KEV Catalog Amid Active ExploitationJune 10, 2026

Related Weaknesses

• CWE-116