Paper/Archive/CVE-2026-16395

CVE-2026-16395

Mozilla Firefox — Integer overflow in the Audio/Video component

EPSS 0.6%CVSS 9.8

critical.is priorityof 100

39

CVSS 9.8 (ADP)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 49.6.496 × 209.9 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Affected

ProductAffectedFixed inSource

Firefoxsee advisory153CNA

Thunderbirdsee advisory153CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refbugzilla.mozilla.org/show_bug.cgi?id=2047221 refmozilla.org/security/advisories/mfsa2026-68 refmozilla.org/security/advisories/mfsa2026-71