CVE-2023-4762 Google Chromium V8 Type Confusion

What is CVE-2023-4762?

CVE-2023-4762 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 5 Sep 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

Type Confusion in V8 in Google Chrome prior to 116.0.5845.179 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

Weakness: CWE-843

Which versions are affected by CVE-2023-4762?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Google Chrome, Microsoft Edge Chromium.

How do I fix CVE-2023-4762?

Upgrade to a fixed version. US federal agencies must fix it by 27 Feb 2024.

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

Is CVE-2023-4762 being exploited?

Yes. Attackers have exploited CVE-2023-4762 in the wild since at least 6 Feb 2024.

Public exploit code: 2 proofs of concept on GitHub.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2023-4762, GHSA-3wjr-p76q-rg8q.