CVE Tools
Sign in

CVE-2026-20224

Cisco Catalyst SD-WAN Manager XML External Entity Injection Vulnerability

Published: May 14, 2026Updated: May 14, 2026 Sources: CVE List NVD BDUCWE-20
NVD MITRE
8.6CVSSHIGH
EPSS Score
0.5%
Top 58.6%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an unauthenticated, remote attacker to read arbitrary files that are stored in an affected system. The attacker does not need to have valid user credentials. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to read arbitrary files that are stored in the affected system.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-20

Affected Products

Catalyst SD-WAN ManagerCisco Systems Inc.
On-premNetwork Device
Networking Infrastructure / vpn-gateway
Cisco Catalyst SD-WAN ManagerCisco
On-premNetwork Device
Networking Infrastructure / router-switch
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-mltvnps2-JxpWm7R
sec.cloudapps.cisco.com
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk
sec.cloudapps.cisco.com
https://github.com/fevar54/CVE-2026-20224---XXE-Injection-en-Cisco-Catalyst-SD-WAN-Manager
github.com
and 1 more references View all →

Timeline

Published
May 14, 2026
Last Updated
May 14, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-20224 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows