CVE-2026-20224
HighCVSS 8.6Exploitation Probability (EPSS)
Low risk48th percentile - higher than 48% of all known CVEs
Summary
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, allows an unauthenticated, remote attacker to read arbitrary files stored on the affected system. The flaw is due to improper handling of XML External Entity (XXE) entries when parsing an XML file.
Risk Assessment
An attacker with no credentials can read sensitive data such as configurations, passwords, or keys, leading to confidentiality breach and potential further escalation within the network.
Recommendation
Apply the security update provided by Cisco for Cisco Catalyst SD-WAN Manager immediately. Until then, restrict access to the management interface to trusted IP addresses only.
Other vulnerabilities in Cisco Catalyst SD-WAN Manager
See all- CVE-2026-20262MediumActively exploited
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager allows an authenticated remote attacker to create or overwrite any file on the filesystem. This is due to improper input validation during file upload.
- CVE-2026-20294Medium
A vulnerability in the web-based management interface of Cisco Catalyst SD-WAN Manager allows an authenticated remote attacker with low privileges to view sensitive information in clear text. The issue is due to insufficient access control for certain template types, potentially exposing authentication credentials.
- CVE-2026-20210Medium
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager (formerly SD-WAN vManage) allows an authenticated, remote attacker with read-only permissions to modify configurations and perform unauthorized actions. The issue is due to a failure to redact sensitive information within device configurations and templates.
- CVE-2026-20209Medium
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager (formerly SD-WAN vManage) allows an authenticated attacker with read-only permissions to elevate privileges to high. The issue is due to sensitive session information being recorded in audit logs.
- CVE-2026-20108Medium
A vulnerability in the web-based management interface of Cisco Catalyst SD-WAN Manager allows an authenticated, remote attacker to perform a cross-site scripting (XSS) attack against a user of the interface. This is due to insufficient input validation.
Original NVD description (English source)
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.