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CVE-2020-26066

Cisco SD-WAN vManage Software XML External Entity Vulnerability

Published: Nov 18, 2024Updated: Aug 4, 2025 Sources: CVE List NVD BDUCWE-611
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.6%
Top 56.7%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

A vulnerability in the web UI of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain read and write access to information that is stored on an affected system. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by persuading a user to import a crafted XML file with malicious entries. A successful exploit could allow the attacker to read and write files within the affected application.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-611

Affected Products

catalyst sd-wan managerciscoNetworking Infrastructure
Cisco SD-WANCisco Systems Inc.Networking Infrastructure
Cisco Catalyst SD-WAN ManagerCiscoNetworking Infrastructure
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Attack Graph

Products CVE Techniques Tactics

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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

2 techniques
Collection
Initial Access
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References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanx3-vrZbOqqD
sec.cloudapps.cisco.com
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanx3-vrZbOqqD
tools.cisco.com

Timeline

Published
Nov 18, 2024
Last Updated
Aug 4, 2025

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