CVE-2018-9840

MediumCVSS 6.8/10Last modified Jun 17, 2026

Description

The Open Whisper Signal app before 2.23.2 for iOS allows physically proximate attackers to bypass the screen locker feature via certain rapid sequences of actions that include app opening, clicking on cancel, and using the home button.

Metrics

CVSS 3.0 6.8/10CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published: Apr 10, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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