CVE-2026-20320
HighCVSS 7.5Summary
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, allowing the attacker to view sensitive files from the filesystem with the privileges of the Cisco BroadWorks user.
Risk Assessment
An attacker could gain access to confidential configuration data, potentially leading to further attacks or system compromise.
Recommendation
Apply the patches provided by Cisco and disable external entity resolution in the XML parser if possible.
Original NVD description (English source)
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.