CVE-2026-12330

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CVSS 3.1

5.4 medium

EPSS

<1%p6

Published

Jun 16, 2026 (Jun 16, 2026)

Modified

Jun 17, 2026

Description

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

Vendors: mozilla
Products: firefox, thunderbird
Weakness: CWE-119
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.2%)

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