Vulnerability Database

309,364

Total vulnerabilities in the database

CVE-2020-5753

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.

  • Published: May 20, 2020
  • Updated: Nov 16, 2025
  • CVE: CVE-2020-5753
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:P/I:N/A:N

CWEs:

Software From Fixed in
signal / signal - 3.8.1.5.x
signal / private_messenger - 4.59.0.x