Cisco Catalyst SD-WAN Manager's Improper Encoding Allows an Authenticated Local Attacker to Execute Arbitrary Commands as Root via a Crafted File; CISA's June 23rd KEV Deadline Has Passed

Last refreshed2026-09-27

Status: KEV | Advisory ID: CVE-2026-20245

Key Details

CVE	CVE-2026-20245
Vulnerability Name	Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability
Affected products	Cisco Catalyst SD-WAN Manager
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified as	CWE-116 (Improper Encoding or Escaping of Output)
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-06-09.
Exploitation prediction (EPSS)	25.32% probability of exploitation in the next 30 days (98% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline	2026-06-23 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
Cisco	Catalyst SD-WAN Manager

Vendor

Product

Affected Versions

Patch Status

Cisco

Catalyst SD-WAN Manager

Subsystems	Industrial Network - Routers/Firewalls
Sectors	Multiple

What to Know

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

Monitor Cisco's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-20245
CVE	https://www.cve.org/CVERecord?id=CVE-2026-20245

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-20245

CVE

https://www.cve.org/CVERecord?id=CVE-2026-20245

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-06-09
Required Action Due Date	2026-06-23
Required 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.

Field

Value

KEV Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Date Added to KEV

2026-06-09

Required Action Due Date

2026-06-23

Required 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.