Vulnerability in Mozilla Firefox
CVE-2022-31736
A malicious website could have learned the size of a cross-origin resource that supported Range requests. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
EPSS: 0.011 (60.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox_esr
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
References
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Permissions Required, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-31736?
- CVE-2022-31736 is a critical-severity vulnerability in Mozilla Firefox, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 9.8/10. Published 2022-12-22.
- How severe is CVE-2022-31736?
- Critical severity. CVSS v3 base score is 9.8 out of 10.