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CVE-2026-74976

JIT miscompilation in the JavaScript Engine: JIT component PUBLISHED

Description (CNA)

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

Affected (CNA)

Vendor / productVersions
Mozilla / Firefoxunaffected 140.14 through 140.*; unaffected 153.1 through 153.*; unaffected 154 through *
Mozilla / Thunderbirdunaffected 140.14 through 140.*; unaffected 153.1 through 153.*; unaffected 154 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.