title: F-Secure SAFE Browser vulnerable to USSD attacks
description: A vulnerability affecting F-Secure SAFE browser was discovered. A maliciously crafted website attached with USSD code in JavaScript or iFrame can trigger dialer application from F-Secure browser which can be exploited by an attacker to send unwanted USSD messages or perform unwanted calls. In most modern Android OS, dialer application will require user interaction, however, some older Android OS may not need user interaction.
problem types: F-Secure SAFE Browser vulnerable to USSD attacks
affected:
{
platforms: Android
product: F-Secure SAFE Browser for Android Version 18.5 & below
vendor: F-Secure
versions:
lessThan: 18.6, status: affected, version: 18.5, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 4.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
version: 3.1
]
solutions: FIX : A fix has been released in the automatic update channel since 22nd, March 2022. No user action is required.