---
id: "CVE-2023-2033"
kind: "vulnerability"
aliases: ["CVE-2023-2033"]
title: "Type confusion in V8 in Google Chrome prior to 112.0.5615.121 allowed a remote attacker to potentially exploit heap\u2026"
severity: "high"
cvss: 8.8
epss: null
exploited: true
status: "open"
category: "runtime"
products: [{"name": "Google Chromium V8", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "google chrome", "fixed": ["112.0.5615.121"], "affected": "< 112.0.5615.121", "ecosystem": "vendor"}, {"name": "debian linux", "fixed": [], "affected": "= 11.0", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 36", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 37", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 38", "ecosystem": "vendor"}, {"name": "couchbase server", "fixed": ["7.1.5"], "affected": "< 7.1.5", "ecosystem": "vendor"}, {"name": "couchbase server", "fixed": [], "affected": "= 7.2.0", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["browser", "chrome", "chromium", "edge", "exploited", "opera", "runtime"]
not_affected_if: ["browser-already-patched"]
published_at: "2023-04-14T19:15:09+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-2033", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2033", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Type confusion in V8 in Google Chrome prior to 112.0.5615.121 allowed a remote attacker to potentially exploit heap…

A type confusion bug in the V8 JavaScript engine used by Chromium lets a remote attacker corrupt heap memory by serving a crafted HTML page. Exploitation in the wild is confirmed by CISA's KEV catalog, and the bug affects Chrome, Edge, Opera and other Chromium browsers.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Google Chromium V8 affected ? fixed ?
- vendor:google chrome affected < 112.0.5615.121 fixed 112.0.5615.121
- vendor:debian linux affected = 11.0 fixed ?
- vendor:fedoraproject fedora affected = 36 fixed ?
- vendor:fedoraproject fedora affected = 37 fixed ?
- vendor:fedoraproject fedora affected = 38 fixed ?
- vendor:couchbase server affected < 7.1.5 fixed 7.1.5
- vendor:couchbase server affected = 7.2.0 fixed ?

## How to check

Open the browser's version page (chrome://version in Chrome or Edge) and compare the Chromium version against the fixed version in the vendor advisory.

## Fix

Update the browser to a Chromium release that includes the vendor fix, per the vendor instructions CISA references.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-2033
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2023-2033

## From the sources

Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

CISA required action: Apply updates per vendor instructions.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_