CVE-2022-26382

4.3 mediumEPSS 0.5%

Medium (4.3) in mozilla firefox. EPSS 0.5% chance of exploitation in the next 30 days.

While the text displayed in Autofill tooltips cannot be directly read by JavaScript, the text was rendered using page fonts. Side-channel attacks on the text by using specially crafted fonts could have lead to this text being inferred by the webpage. This vulnerability affects Firefox < 98.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
CWE: CWE-203
Published: 2022-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1741888
https://www.mozilla.org/security/advisories/mfsa2022-10/
https://bugzilla.mozilla.org/show_bug.cgi?id=1741888
https://www.mozilla.org/security/advisories/mfsa2022-10/

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