vulnerability
MFSA2022-20 Firefox: Security Vulnerabilities fixed in Firefox 101 (CVE-2022-31742)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:C/I:N/A:N) | May 31, 2022 | Jun 1, 2022 | Aug 11, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:C/I:N/A:N)
Published
May 31, 2022
Added
Jun 1, 2022
Modified
Aug 11, 2025
Description
An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
Solution
mozilla-firefox-upgrade-101_0
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.