{"id":"CVE-2020-5753","details":"Signal Private Messenger Android v4.59.0 and up and iOS v3.8.1.5 and up allows a remote non-contact to ring a victim's Signal phone and disclose currently used DNS server due to ICE Candidate handling before call is answered or declined.","modified":"2026-07-08T20:43:19.500377Z","published":"2020-05-20T14:15:11.673Z","references":[{"type":"ADVISORY","url":"https://www.tenable.com/security/research/tra-2020-33"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/signalapp/signal-android","events":[{"introduced":"0"},{"last_affected":"6f39f9849a002f6361d192a00fbd7c52ffaf3bba"}],"database_specific":{"cpe":"cpe:2.3:a:signal:private_messenger:*:*:*:*:*:android:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"4.59.0"}],"source":"CPE_RANGE"}}],"versions":["v4.59.0","v4.58.5","v4.58.4","v4.58.3","v4.58.2","v4.58.1","v4.58.0","v4.57.2","v4.57.1","v4.57.0","v4.56.4","v4.56.3","v4.56.2","v4.56.1","v4.56.0","v4.55.8","v4.55.7","v4.55.6","v4.55.5","v4.55.4","v4.55.3","v4.55.2","v4.55.1","v4.55.0","v4.54.3","v4.54.2","v4.54.1","v4.54.0","v4.53.7","v4.53.6","v4.53.5","v4.53.4","v4.53.3","v4.53.2","v4.53.1","v4.53.0","v4.52.4","v4.52.3","v4.52.2","v4.52.1","v4.52.0","v4.51.6","v4.51.5","v4.51.4","v4.51.3","v4.51.2-corrected","v4.51.2","v4.51.1","v4.51.0","v4.50.6","v4.50.5","v4.50.4","v4.50.3","v4.50.2","v4.50.1","v.4.50.1","v4.50.0","v4.49.18","v4.49.17","v4.49.16","v4.49.15","v4.49.14","v4.49.13","v4.49.12","v4.49.11","v4.49.10","v4.49.9","v4.49.8","v4.49.7","v4.49.6","v4.49.5","v4.49.4","v4.49.3","v4.49.2","v4.49.1","v4.49.0","v4.48.17","v4.48.16","v4.48.15","v4.48.14","v4.48.13","v4.48.12","v4.48.11","v4.48.10","v4.48.9","v4.48.8","v4.48.7","v4.48.6","v4.48.5","v4.47.6","v4.48.4","v4.48.3","v4.48.2","v4.48.1","v4.48.0","v4.47.5","v4.47.4","v4.47.3","v4.47.2","v4.47.1","v4.47.0","v4.46.2","v4.46.1","v4.46.0","v4.45.2","v4.45.1","v4.45.0","v4.44.7","v4.44.6","v4.44.5","v4.44.4","v4.44.3","v4.44.2","v4.44.1","v4.44.0","v4.43.8","v4.43.7","v4.43.6","v4.43.5","v4.43.4","v4.43.3","v4.43.2","v4.43.1","v4.43.0","v4.42.3","v4.42.2","v4.42.1","v4.42.0","v4.41.6","v4.41.5","v4.41.4","v4.41.3","v4.41.2","v4.41.1","v4.41.0","v4.40.4","v4.40.3","v4.40.2","v4.40.1","v4.40.0","v4.39.4","v4.39.3","v4.39.2","v4.39.1","v4.39.0","v4.38.3","v4.38.2","v4.38.1","v4.38.0","v4.37.2","v4.37.1","v4.37.0","v4.36.2","v4.36.1","v4.36.0","v4.35.3","v4.35.2","v4.35.1","v4.35.0","v4.34.8","v4.34.7","v4.34.6","v4.34.5","v4.34.4","v4.34.3","v4.34.2","v4.34.1","v4.34.0","v4.33.5","v4.33.4","v4.33.3","v4.33.2","v4.33.1","v4.33.0","v4.32.8","v4.32.7","v4.32.6","v4.32.5","v4.32.4","v4.32.3","v4.32.2","v4.32.1","v4.32.0","v4.31.8","v4.31.7","v4.31.6","v4.31.5","v4.31.4","v4.31.3","v4.31.2","v4.31.1","v4.31.0","v4.30.7","v4.30.6","v4.30.5","v4.30.4","v4.30.2","v4.30.1","v4.30.0","v4.29.7","v4.29.6","v4.29.5","v4.29.4","v4.29.3","v4.29.2","v4.29.1","v4.29.0","v4.28.1","v4.28.0","v4.27.3","v4.27.2","v4.27.1","v4.27.0","v4.26.2","v4.26.1","v4.26.0","v4.25.10","v4.25.9","v4.25.8","v4.25.7","v4.25.6","v4.25.5","v4.25.4","v4.25.3","v4.25.2","v4.25.1","v4.25.0","v4.24.8","v4.24.7","v4.24.6","v4.24.5","v4.24.4","v4.24.3","v4.24.2","v4.24.1","v4.24.0","v4.23.4","v4.23.3","v4.23.2","v4.23.1","v4.23.0","v4.22.4","v4.22.3","v4.22.2","v4.22.1","v4.22.0","v4.21.6","v4.21.5","v4.21.4","v4.21.3","v4.21.2","v4.21.1","v4.21.0","v4.20.9","v4.20.8","v4.20.7","v4.20.6","v4.20.5","v4.20.4","v4.20.3","v4.20.2","v4.19.3","v4.19.2","v4.19.1","v4.18.3","v4.18.2","v4.18.1","v4.18.0","v4.17.5","v4.17.4","v4.17.3","v4.17.2","v4.17.1","v4.17.0","v4.16.9","v4.16.7","v4.16.6","v4.16.4","v4.16.3","v4.15.5","v4.15.3","v4.15.2","v4.15.1","v4.15.0","v4.14.10","v4.14.9","v4.14.8","v4.14.7","v4.14.6","v4.14.5","v4.14.4","v4.13.3","v4.14.2","v4.14.1","v4.14.0","v4.13.7","v4.13.6","v4.13.5","v4.13.4","v4.13.2","v4.13.1","v4.13.0","v4.12.3","v4.11.5","v4.11.3","v4.11.2","v4.11.1","v4.10.12","v4.10.11","v4.10.10","v4.10.9","v4.10.8","v4.10.7","v4.10.6","v4.10.5","v4.10.2","v4.10.1","v4.9.9","v4.9.8","v4.9.6","v4.9.5","v4.9.4","v4.9.3","v4.9.2","v4.9.1","v4.9.0","v4.8.1","v4.8.0","v4.7.4","v4.7.3","v4.7.2","v4.7.1","v4.7.0","v4.6.0","v4.5.3","v4.5.2","v4.5.0","v4.4.0","v4.3.2","v4.3.1","v4.3.0","v4.2.5","v4.2.4","v4.2.3","v4.2.2","v4.2.1","v4.2.0","v4.1.0","v4.0.1","v4.0.0","v3.31.4","v3.31.2","v3.31.1","v3.31.0","v3.30.4","v3.30.3","v3.30.2","v3.30.1","v3.30.0","v3.29.6","v3.29.5","v3.29.4","v3.29.2","v3.28.4","v3.28.3","v3.28.2","v3.28.1","v3.28.0","v3.27.1","v3.27.0","v3.26.2","v3.26.1","v3.26.0","v3.25.4","v3.25.3","v3.25.2","v3.25.1","v3.25.0","v3.24.1","v3.24.0","v3.23.0","v3.22.2","v3.22.1","v3.22.0","v3.21.3","v3.21.2","v3.21.1","v3.21.0","v3.20.4","v3.20.3","v3.20.2","v3.20.1","v3.19.0","v3.18.3","v3.18.2","v3.18.1","v3.18.0","v3.17.0","v3.16.1","v3.16.0","v3.15.2","v3.15.1","v3.15.0","v3.14.2","v3.14.1","v3.14.0","v3.13.1","v3.13.0","v3.12.0","v3.11.1","v3.11.0","v3.10.0","v3.9.1","v3.9.0","v3.8.0","v3.7.2","v3.7.1","v3.7.0","v3.6.1","v3.6.0","v3.5.2","v3.5.1","v3.5.0","v3.4.2","v3.4.0","v3.3.2","v3.3.1","v3.3.0","v3.1.1","v3.1.0","v3.0.3","v3.0.2","v3.0.1","v3.0.0","v2.28.1","v2.28.0","v2.27.2","v2.27.1","v2.27.0","v2.26.5","v2.26.3","v2.26.2","v2.26.0","v2.25.3","v2.25.1","v2.25.0","v2.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