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

Cisco Catalyst SD-WAN Manager

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. Added to CISA KEV on 2026-06-09 (federal deadline 2026-06-23).

First seen: 9 Jun 2026
Last update: 9 Jun 2026, 12:00 UTC
Identifiers: CVE-2026-20245
Source: CISA KEV
On the menu as: VPN & firewalls

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Cisco Catalyst SD-WAN Manager
Ids: CVE-2026-20245

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. Added to CISA KEV on 2026-06-09 (federal deadline 2026-06-23).

## Steps
1. This touches infrastructure (vpn-edge). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-20245") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://nvd.nist.gov/vuln/detail/CVE-2026-20245 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx
https://pwned.coffee/i/cisco-catalyst-sd-wan-manager-improper-encoding-or-escap-cve-2026-20245

Sources

Totalone hot coffee