CVE-2021-4318 Memory corruption in Chrome

What is CVE-2021-4318?

CVE-2021-4318 is a high-severity memory corruption vulnerability in Google Chrome, published on 28 Jul 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Object corruption in Blink in Google Chrome prior to 94.0.4606.54 allowed a remote attacker to potentially exploit object corruption via a crafted HTML page. (Chromium security severity: High)

Which versions are affected by CVE-2021-4318?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2021-4318?

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-2021-4318 being exploited?

There is no known exploitation of CVE-2021-4318 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-2021-4318, GHSA-v69x-q2hp-582x.