Integer overflow in Mozilla Firefox and Firefox for Android - CVE-2025-11152
Published: October 1, 2025
Vulnerability identifier: #VU116217
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-11152
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the Graphics: Canvas2D component. A remote attacker can trick the victim into visiting a specially crafted website, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Mozilla Firefox
Firefox for Android
Firefox for Android
How to mitigate CVE-2025-11152
Install updates from vendor's website.
Mozilla Firefox - update to 143.0.3
Firefox for Android - update to 143.0.3
Firefox for Android - update to 143.0.3