CVE-2023-6870

4.3 mediumEPSS 0.4%

Medium (4.3) in mozilla. EPSS 0.4% chance of exploitation in the next 30 days.

Applications which spawn a Toast notification in a background thread may have obscured fullscreen notifications displayed by Firefox. *This issue only affects Android versions of Firefox and Firefox Focus.* This vulnerability affects Firefox < 121.

Severity

CVSS 3.1

4.3 medium

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
Published: 2023-12-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox
mozilla:firefox_focus

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1823316
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-56/
https://bugzilla.mozilla.org/show_bug.cgi?id=1823316
https://security.gentoo.org/glsa/202401-10

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