CVE-2017-5428: Mozilla Firefox

Critical severity, CVSS 9.8. EPSS: 3.2% chance of exploitation in the next 30 days.

An integer overflow in "createImageBitmap()" was reported through the Pwn2Own contest. The fix for this vulnerability disables the experimental extensions to the "createImageBitmap" API. This function runs in the content sandbox, requiring a second vulnerability to compromise a user's computer. This vulnerability affects Firefox ESR < 52.0.1 and Firefox < 52.0.1.

Affected products

• Mozilla Firefox: before 52.0.1 (fixed in 52.0.1)
• Mozilla Firefox ESR: before 52.0.1 (fixed in 52.0.1)
• Red Hat Enterprise Linux: version 7.0 only
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.3 only; version 7.4 only
• Red Hat Enterprise Linux Server Eus: version 7.3 only; version 7.4 only; version 7.5 only
• Red Hat Enterprise Linux Workstation: version 7.0 only

Published 2018-06-11. Last modified 2026-06-17.