Cisco BroadWorks OCI XML Parser Flaw Allows Unauthenticated File Reads
Cisco disclosed CVE-2026-20320, a high-severity blind XML external entity injection flaw in the Open Client Interface XML Parser of Cisco BroadWorks. Because external entity resolution is enabled by default, an unauthenticated remote attacker can send crafted XML to the OCI-P service and read sensitive filesystem files with BroadWorks user privileges. Cisco released software updates; no workarounds exist.
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