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CVE-2019-9970

N/A

Published: March 24, 2019 at 01:52 AM UTC

Updated: June 17, 2026 at 02:44 AM UTC

2 products affected across 1 vendorSignal DesktopPrivate Messenger

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Severity

N/A

Exploit prediction

EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Private Messenger · Signal

95%

v ≤ 4.35.3

Signal Desktop · Signal

95%

v ≤ 1.23.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

VDB Entryx_refsource_BIDThird Party Advisory

Source: [email protected]

http://www.securityfocus.com/bid/107550

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://github.com/blazeinfosec/advisories/blob/master/signal-advisory.txt

CVSS

4.3MEDIUM[email protected]

Confidentiality: NONE
Integrity: PARTIAL
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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