CVE-2026-20320

Cisco BroadWorks Improper Restriction of XML External Entity Reference Vulnerability

Broadworks Application Delivery Platform

A vulnerability in the Open Client Interface (OCI) XML Parser of Cisco BroadWorks could allow an unauthenticated, remote attacker to read sensitive configuration information on an affected system. This vulnerability exists because XML entries are improperly parsed due to external entity resolution being allowed by default. An attacker could exploit this vulnerability by sending a crafted XML message to the Open Client Interface – Provisioning (OCI-P) service. A…

19. Aug 2026

Ausgewertete Quellen

• Hersteller
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bworks-xxe-uwUd7CEt
• Hinweis
  https://malbearlabs.com/posts/operation-snowball-inside-an-autonomous-ai-intrusion-campaign
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20320
• CISA
  Cisco BroadWorks Improper Restriction of XML External Entity Reference Vulnerability
• NVD
  CVE-2026-20320