CVE-2026-14241

Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152.0.4.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/buglist.cgi?bug_id=2043241%2C2045514%2C2045576%2C2045623%2C2045765%2C2049409%2C2049840	Broken Link
https://bugzilla.mozilla.org/show_bug.cgi?id=2046814	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-62/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:152.0.3:*:*:*:-:*:*:*

History

06 Jul 2026, 16:16

Type	Values Removed	Values Added
CWE		CWE-119

01 Jul 2026, 15:43

Type	Values Removed	Values Added
CPE		cpe:2.3:a:mozilla:firefox:152.0.3::::-:::
First Time		Mozilla Mozilla firefox
CWE		CWE-787
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
References	~~() https://bugzilla.mozilla.org/buglist.cgi?bug_id=2043241%2C2045514%2C2045576%2C2045623%2C2045765%2C2049409%2C2049840 -~~	() https://bugzilla.mozilla.org/buglist.cgi?bug_id=2043241%2C2045514%2C2045576%2C2045623%2C2045765%2C2049409%2C2049840 - Broken Link
References	~~() https://bugzilla.mozilla.org/show_bug.cgi?id=2046814 -~~	() https://bugzilla.mozilla.org/show_bug.cgi?id=2046814 - Permissions Required
References	~~() https://www.mozilla.org/security/advisories/mfsa2026-62/ -~~	() https://www.mozilla.org/security/advisories/mfsa2026-62/ - Vendor Advisory

30 Jun 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-30 14:16

Updated : 2026-07-06 16:16

NVD link : CVE-2026-14241

Mitre link : CVE-2026-14241

CVE.ORG link : CVE-2026-14241

JSON object : View

Products Affected

mozilla

firefox

CWE

CWE-787

Out-of-bounds Write

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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