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CVE-2020-20093

MediumPublished

The Facebook Messenger app for iOS 227.0 and prior and Android 228.1.0.10.116 and prior user interface does not properly represent URI messages to the user,...

Published: Mar 23, 2022
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Aug 5, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS probability estimate

2.4%

Low · next 30 days

Percentile: 82.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The Facebook Messenger app for iOS 227.0 and prior and Android 228.1.0.10.116 and prior user interface does not properly represent URI messages to the user, which results in URI spoofing via specially crafted messages.

Sources

RIUSExploit
CVE-2020-20093; 20094; 20095; 20096, 2022-28345 RTLO Injection URI Spoofing

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