CVE-2021-4128

When transitioning in and out of fullscreen mode, a graphics object was not correctly protected; resulting in memory corruption and a potentially exploitable crash.<br>*This bug only affects Firefox on MacOS. Other operating systems are unaffected.*. This vulnerability affects Firefox < 95.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1735852	Exploit Issue Tracking Patch Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-52/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1735852	Exploit Issue Tracking Patch Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-52/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-12-22 20:15

Updated : 2025-04-16 16:15

NVD link : CVE-2021-4128

Mitre link : CVE-2021-4128

CVE.ORG link : CVE-2021-4128

JSON object : View

Products Affected

apple

macos

mozilla

firefox

CWE

CWE-416

Use After Free

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