Loading vulnerability…
CVE-2023-4762 is a high-severity type confusion vulnerability in the V8 JavaScript engine used by Google Chrome. In Google Chrome versions prior to 116.0.5845.179, improper handling of object types within V8 could allow a remote attacker to trigger memory corruption by causing the engine to treat data as an incompatible type while processing attacker-controlled web content. The issue is reachable through a crafted HTML page and can lead to arbitrary code execution within the browser context.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single JavaScript proof-of-concept (PoC) exploit for CVE-2023-4762, a vulnerability in Google's V8 JavaScript engine. The exploit demonstrates a 'hole' leak bug related to the handling of arguments objects and feedback vectors during the optimization phase in V8's Turbofan pipeline. The code is intended to be run in a debug build of V8 using the d8 shell with specific flags to observe the bug. The PoC does not provide a weaponized payload but serves as a technical demonstration of the vulnerability, which could potentially be leveraged for further exploitation such as type confusion or memory corruption. The repository is well-commented, includes references to the relevant patch and related research, and is structured as a single file (poc.js) containing both technical writeup and exploit code.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A type confusion vulnerability in V8 JavaScript engine in Google Chrome, exploited by Predator spyware.
Type confusion vulnerability in Chromium V8 JavaScript engine.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.