CyberSecurity News
Signal Vulnerability Lets Malicious Callers Block Hang-Ups
SecurityWeek
· October 22, 2026AI summary
A vulnerability in the RingRTC calling library is causing issues with call termination. The bug prevents calls from ending properly, allowing malicious callers to block hang-ups. This issue affects the open source library used by Signal. The vulnerability is related to the proper ending of calls. The bug's impact is on the call termination process.
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