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CVE-2025-14325

HIGH7.3

JIT miscompilation in the JavaScript Engine: JIT component

Published Dec 9, 2025

Modified 1 weeks ago

Fix available

Details

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

Affected Packages

Ubuntu:14.04:LTSFirefox

Fixed in:

146

Ubuntu:16.04:LTSFirefox

Fixed in:

146

Ubuntu:18.04:LTSFirefox

Fixed in:

146

Ubuntu:20.04:LTSFirefox

Fixed in:

146

Ubuntu:22.04:LTSFirefox

Fixed in:

146

Ubuntu:24.04:LTSFirefox

Fixed in:

146

Ubuntu:25.04Firefox

Fixed in:

146

Ubuntu:25.10Firefox

Fixed in:

146

Windows:10240Mozilla Firefox

Fixed in:

146

Windows:10240Mozilla Firefox ESR

Fixed in:

140.6

Windows:14393Mozilla Firefox

Fixed in:

146

Windows:14393Mozilla Firefox ESR

Fixed in:

140.6

Windows:17763Mozilla Firefox

Fixed in:

146

Windows:17763Mozilla Firefox ESR

Fixed in:

140.6

Windows:18362Mozilla Firefox

Fixed in:

146

Windows:18362Mozilla Firefox ESR

Fixed in:

140.6

Windows:18363Mozilla Firefox

Fixed in:

146

Windows:18363Mozilla Firefox ESR

Fixed in:

140.6

Windows:19041Mozilla Firefox

Fixed in:

146

Windows:19041Mozilla Firefox ESR

Fixed in:

140.6

Windows:19042Mozilla Firefox

Fixed in:

146

Windows:19042Mozilla Firefox ESR

Fixed in:

140.6

Windows:19043Mozilla Firefox

Fixed in:

146

Windows:19043Mozilla Firefox ESR

Fixed in:

140.6

Windows:19044Mozilla Firefox

Fixed in:

146

Windows:19044Mozilla Firefox ESR

Fixed in:

140.6

Windows:19045Mozilla Firefox

Fixed in:

146

Windows:19045Mozilla Firefox ESR

Fixed in:

140.6

Windows:20348Mozilla Firefox

Fixed in:

146

Windows:20348Mozilla Firefox ESR

Fixed in:

140.6

Windows:22000Mozilla Firefox

Fixed in:

146

Windows:22000Mozilla Firefox ESR

Fixed in:

140.6

Windows:22621Mozilla Firefox

Fixed in:

146

Windows:22621Mozilla Firefox ESR

Fixed in:

140.6

Windows:22631Mozilla Firefox

Fixed in:

146

Windows:22631Mozilla Firefox ESR

Fixed in:

140.6

Windows:25398Mozilla Firefox

Fixed in:

146

Windows:25398Mozilla Firefox ESR

Fixed in:

140.6

Windows:26100Mozilla Firefox

Fixed in:

146

Windows:26100Mozilla Firefox ESR

Fixed in:

140.6

Windows:26200Mozilla Firefox

Fixed in:

146

Windows:26200Mozilla Firefox ESR

Fixed in:

140.6

macOS:14Firefox

Fixed in:

146

macOS:14Firefox ESR

Fixed in:

140.6

macOS:15Firefox

Fixed in:

146

macOS:15Firefox ESR

Fixed in:

140.6

macOS:26Firefox

Fixed in:

146

macOS:26Firefox ESR

Fixed in:

140.6

References

WEBhttps://bugzilla.mozilla.org/show_bug.cgi?id=1998050 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-14325 WEBhttps://www.mozilla.org/security/advisories/mfsa2025-92/WEBhttps://www.mozilla.org/security/advisories/mfsa2025-94/WEBhttps://www.mozilla.org/security/advisories/mfsa2025-95/WEBhttps://www.mozilla.org/security/advisories/mfsa2025-96/

CVSS Analysis

CVSS v3.1

7.3

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

LowI:L

Availability

LowA:L

7.3/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Timeline

PublishedDec 9, 2025

ModifiedJan 7, 2026

CVE-2025-14325 | Mondoo Vulnerability Intelligence