VulnerabilityModified
CVE-2022-29916
This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.
MEDIUM 6.5EPSS 0.72%
Does this matter?
Lower severity and a low EPSS score (0.72%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 0.72% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1760674Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-16/Exploit, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-17/Exploit, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-18/Exploit, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1760674Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-16/Exploit, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-17/Exploit, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-18/Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.