CVE-2022-22758

HIGH

Firefox < 97.0 - Cleartext Transmission of Sensitive Information via USSD Code Injection in tel: Links

Title source: llm
STIX 2.1

Description

When clicking on a tel: link, USSD codes, specified after a <code>\*</code> character, would be included in the phone number. On certain phones, or on certain carriers, if the number was dialed this could perform actions on a user's account, similar to a cross-site request forgery attack.<br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 97.

References (2)

Core 2

Scores

CVSS v3 8.8
EPSS 0.0019
EPSS Percentile 40.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-319
Status published
Products (1)
mozilla/firefox < 97.0
Published Dec 22, 2022
Tracked Since Feb 18, 2026