What is CVE-2022-26382?

CVE-2022-26382 is a medium-severity vulnerability in Mozilla Firefox, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2022-12-22.

How severe is CVE-2022-26382?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Mozilla Firefox

CVE-2022-26382

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.

EPSS: 0.005 (39.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

security@mozilla.org (Vendor Advisory)
security@mozilla.org (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2022-26382?: CVE-2022-26382 is a medium-severity vulnerability in Mozilla Firefox, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2022-12-22.
How severe is CVE-2022-26382?: Medium severity. CVSS v3 base score is 4.3 out of 10.