CVE-2026-20224

High

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.

SeverityHigh
CVSS8.6
Exploit probability—
ProductCisco Catalyst Sd-wan Manager
PublishedMay 14, 2026
First seenMay 14, 2026

How to fix

Update
  • cisco catalyst_sd-wan_manager20.9.9.1, 20.12.5.4, 20.12.6.2, 20.15.4.4, 20.15.5.2, 20.18.2.2, 26.1.1.1 or later

Affected products

ProductAffected versionsFixed in
cisco catalyst_sd-wan_managerv < 20.9.9.1, 20.10 ≤ v < 20.12.5.4, 20.12.6 ≤ v < 20.12.6.2, 20.13 ≤ v < 20.15.4.4, 20.15.5 ≤ v < 20.15.5.2, 20.16 ≤ v < 20.18.2.2, 26.1 ≤ v < 26.1.1.1, 20.12.720.9.9.1, 20.12.5.4, 20.12.6.2, 20.15.4.4, 20.15.5.2, 20.18.2.2, 26.1.1.1

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