Information disclosure in Mozilla Firefox
CVE-2022-29916
Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.
Vulnerability class: Information Disclosure
EPSS: 0.007 (50.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
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 (Exploit, Vendor Advisory)
- security@mozilla.org (Exploit, Vendor Advisory)
- security@mozilla.org (Exploit, Vendor Advisory)
- security@mozilla.org (Exploit, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-29916?
- CVE-2022-29916 is a medium-severity vulnerability in Mozilla Firefox, classified under Information Disclosure. CVSS score: 6.5/10. Published 2022-12-22.
- How severe is CVE-2022-29916?
- Medium severity. CVSS v3 base score is 6.5 out of 10.