CVE-2026-20320

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.

Severity
High 7.5
CVSS 3.1
Exploited
Not listed
EPSS
0.004
28.5th percentile
Discovered by
Third party
Vendor-published field
Published
Aug 19, 2026
Assigned by cisco

Description

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 successful exploit could allow the attacker to view sensitive files from the filesystem with the privileges of the Cisco BroadWorks user.

Weakness: CWE-611

Affected products

Vendor Product Category Matched by
Cisco Cisco BroadWorks Other Products cna-assigner
Vendor-reported products (1)
  • Cisco · Cisco BroadWorks

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