CVE-2019-5866 Memory corruption in Chrome

What is CVE-2019-5866?

CVE-2019-5866 is a critical memory corruption vulnerability in Google Chrome, published on 25 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Weakness: CWE-787

Which versions are affected by CVE-2019-5866?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2019-5866?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-5866 being exploited?

There is no known exploitation of CVE-2019-5866 in the wild and no public exploit code.

Other vulnerabilities in Google Chrome

• CVE-2022-4135 Google Chromium GPU Heap Buffer Overflow Exploited Critical 9.6
• CVE-2020-16017 Google Chrome Use-After-Free Exploited Critical 9.6
• CVE-2020-16010 Google Chrome for Android UI Heap Buffer Overflow Exploited Critical 9.6
• CVE-2026-87491 Google Chromium V8 Out of Bounds Write Exploited High 8.8
• CVE-2026-85046 Google Chromium V8 Type Confusion Exploited High 8.8

All Google Chrome vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-5866, GHSA-pmgx-8jcm-w9ch, UBUNTU-CVE-2019-5866.