PT-2026-49699 · Mozilla · Firefox

Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-12330

Mitre

Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12 and Firefox ESR 115.37.

Related Identifiers

CVE-2026-12330

Affected Products

Firefox

References · 4

• https://mozilla.org/security/advisories/mfsa2026-58 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-59 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-12330 · Security Note
• https://bugzilla.mozilla.org/show_bug.cgi?id=2029326 · Note