CVE-2026-20224

Cisco Catalyst SD-WAN Manager XML External Entity Injection Vulnerability

State
Published
Severity
8.6 High
Published
May 14, 2026
Updated
May 14, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:Ncisco

Weaknesses

  • CWE-20 Improper Input Validation

Affected Products

ProductVersions
Cisco Catalyst SD-WAN ManagerCisco
  • 20.1.12Affected
  • 19.2.1Affected
  • 18.4.4Affected
  • 18.4.5Affected
  • 20.1.1.1Affected
  • 20.1.1Affected
  • 19.3.0Affected
  • 19.2.2Affected
  • 19.2.099Affected
  • 18.3.6Affected
  • 18.3.7Affected
  • 19.2.0Affected
  • 18.3.8Affected
  • 19.0.0Affected
  • 19.1.0Affected
  • 18.4.302Affected
  • 18.4.303Affected
  • 19.2.097Affected
  • 19.2.098Affected
  • 17.2.10Affected
  • 18.3.6.1Affected
  • 19.0.1aAffected
  • 18.2.0Affected
  • 18.4.3Affected
  • 18.4.1Affected
  • and 338 more versions

References

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