CVE Tools
Sign in

CVE-2026-20210

Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability

Published: May 14, 2026Updated: May 14, 2026 Sources: CVE List NVD BDUCWE-779
NVD MITRE
5.4CVSSMEDIUM
EPSS Score
0.2%
Top 91.3%
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 authenticated, remote attacker with read-only permissions to modify configurations and perform unauthorized actions on an affected system. This vulnerability exists because of a failure to redact sensitive information within device configurations and templates. An attacker could exploit this vulnerability by elevating their read-only permissions to those of a high-privileged user. A successful exploit could allow the attacker to access or modify configuration settings within Cisco Catalyst SD-WAN Manager as a high-privileged user.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-779

Affected Products

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

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

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://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-mltvnps2-JxpWm7R
sec.cloudapps.cisco.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-2026-20210 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