CVE-2023-42580

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-05 · updated 2026-06-17

Description

Improper URL validation from MCSLaunch deeplink in Galaxy Store prior to version 4.5.64.4 allows attackers to execute JavaScript API to install APK from Galaxy Store.

Affected products

Samsung Mobile Galaxy Store: before 4.5.64.4 — fixed in 4.5.64.4

How to fix

Upgrade to a fixed version: Samsung Mobile Galaxy Store 4.5.64.4. Check the vendor advisory for mitigations.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=12
https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=12

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