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Appaloosa Scout

Vulnerability · NVD

CVE-2019-9970

MEDIUM 6.5

Open Whisper Signal (aka Signal-Desktop) through 1.23.1 and the Signal Private Messenger application through 4.35.3 for Android are vulnerable to an IDN homograph attack when displaying messages containing URLs. This occurs because the application produces a clickable link even if (for example) Latin and Cyrillic characters exist in the same domain name, and the available font has an identical representation of characters from different alphabets.

Attack vector : Network No privileges required
Show raw CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS 1.83% above median percentile 76.9%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

  • Signal Android org.thoughtcrime.securesms
    Affected ≤4.35.3 Fixed in > 4.35.3 Latest tracked 8.21.5 patched
Vulnerable CPE configurations (1)
Vendor Product Versions
signal private_messenger
Android
≤4.35.3
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