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CVE-2026-4702

JIT miscompilation in the JavaScript Engine component PUBLISHED

Description (CNA)

JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Affected (CNA)

Vendor / productVersions
Mozilla / Firefoxunaffected 140.9 through 140.*; unaffected 149 through *
Mozilla / Thunderbirdunaffected 140.9 through 140.*; unaffected 149 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.