by Kastro
Paper/Archive/CVE-2026-92038

CVE-2026-92038

Mozilla Firefox — Mitigation bypass in the Remote Settings Client component

EPSS 0.3%CVSS 9.1
critical.is priorityof 100
32
CVSS 9.1 (ADP)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 24.5.245 × 204.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

Affected

ProductAffectedFixed inSource
Firefoxsee advisory153.3CNA
Thunderbirdsee advisory153.3CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refbugzilla.mozilla.org/show_bug.cgi?id=2068952refmozilla.org/security/advisories/mfsa2026-90refmozilla.org/security/advisories/mfsa2026-93refmozilla.org/security/advisories/mfsa2026-94refmozilla.org/security/advisories/mfsa2026-96