CVE-2026-20245CiscoRouters and networkingJune 9, 2026

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

High 7.8Actively exploited

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.

What to do

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

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Details

Vendor
Cisco
Product
Cisco Catalyst SD-WAN Manager
CVE
CVE-2026-20245
Affected versions
Cisco Catalyst SD-WAN Controller 20.6: 15 versions, from 20.6.1 to 20.6.8
Cisco Catalyst SD-WAN Controller 20.9: 17 versions, from 20.9.1 to 20.9.9.1
Cisco Catalyst SD-WAN Controller 20.3: 13 versions, from 20.3.1 to 20.3.8
Cisco Catalyst SD-WAN Controller 20.7: 20.7.1; 20.7.2
Cisco Catalyst SD-WAN Controller 20.5: 20.5.1
Cisco Catalyst SD-WAN Controller 19.3: 19.3.0
Cisco Catalyst SD-WAN Controller 17.2: 7 versions, from 17.2.4 to 17.2.10
Cisco Catalyst SD-WAN Controller 18.2: 18.2.0
Cisco Catalyst SD-WAN Controller 18.4: 7 versions, from 18.4.0 to 18.4.303
Cisco Catalyst SD-WAN Controller 19.1: 19.1.0
Cisco Catalyst SD-WAN Controller 19.2: 11 versions, from 19.2.0 to 19.2.929
Cisco Catalyst SD-WAN Controller 18.3: 8 versions, from 18.3.0 to 18.3.8
Cisco Catalyst SD-WAN Controller 20.4: 5 versions, from 20.4.1 to 20.4.2.3
Cisco Catalyst SD-WAN Controller 19.0: 19.0.0; 19.0.1a
Cisco Catalyst SD-WAN Controller 20.8: 20.8.1
Cisco Catalyst SD-WAN Controller 20.1: 5 versions, from 20.1.1 to 20.1.12
Cisco Catalyst SD-WAN Controller 20.10: 20.10.1; 20.10.1.1
Cisco Catalyst SD-WAN Controller 20.11: 20.11.1; 20.11.1.1
Cisco Catalyst SD-WAN Controller 20.12: 16 versions, from 20.12.1 to 20.12.7.1
Cisco Catalyst SD-WAN Controller 20.13: 20.13.1
Cisco Catalyst SD-WAN Controller 20.14: 20.14.1
Cisco Catalyst SD-WAN Controller 20.15: 13 versions, from 20.15.1 to 20.15.5.3
Cisco Catalyst SD-WAN Controller 20.16: 20.16.1
Cisco Catalyst SD-WAN Controller 20.18: 5 versions, from 20.18.1 to 20.18.3
Cisco Catalyst SD-WAN Controller 26.1: 26.1.1; 26.1.1.1; 26.1.1.2
Cisco Catalyst SD-WAN Manager 20.1: 7 versions, from 20.1.1 to 20.1.12
Cisco Catalyst SD-WAN Manager 19.2: 14 versions, from 19.2.0 to 19.2.929
Cisco Catalyst SD-WAN Manager 18.4: 10 versions, from 18.4.0 to 18.4.501_ES
Cisco Catalyst SD-WAN Manager 19.3: 19.3.0
Cisco Catalyst SD-WAN Manager 18.3: 11 versions, from 18.3.0 to 18.3.8 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
7.8
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
June 23, 2026 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
June 9, 2026

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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