Openwave

Threat Actors Exploit Openwave and Cisco BroadWorks Vulnerabilities to Steal Sensitive Telecom Data

Threat actors are actively exploiting two vulnerabilities in Openwave Webtop Media Transcoder and Cisco BroadWorks to access sensitive information from communication service providers. The Openwave flaw, tracked as CVE-2026-111793, allows authenticated users to bypass file-type restrictions and convert unintended documents, potentially leading to sensitive data exposure. Patched in version 1.1.22.0 released in December 2021, the issue was added to CISA’s Known Exploited Vulnerabilities catalog on November 10. The Cisco BroadWorks vulnerability, CVE-2026-20320, is an unauthenticated blind XML external entity injection that enables remote attackers to read sensitive configuration data via the OCI-P service. Malbear Labs reported that a Chinese-speaking actor used an autonomous AI intrusion harness to target a European telecom provider and at least 13 of its customers, focusing on asset enumeration, credential theft, and subscriber record harvesting. CISA added both flaws to the KEV list with a November 24 patching deadline for federal agencies.