---
id: "CVE-2023-3079"
kind: "vulnerability"
aliases: ["CVE-2023-3079"]
title: "Type confusion in V8 in Google Chrome prior to 114.0.5735.110 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": ["114.0.5735.110"], "affected": "< 114.0.5735.110", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 37", "ecosystem": "vendor"}, {"name": "fedoraproject fedora", "fixed": [], "affected": "= 38", "ecosystem": "vendor"}, {"name": "debian linux", "fixed": [], "affected": "= 11.0", "ecosystem": "vendor"}, {"name": "debian linux", "fixed": [], "affected": "= 12.0", "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: ["browsers", "chromium", "exploited", "google-chrome", "microsoft-edge", "opera", "runtime"]
not_affected_if: ["already-patched-browser"]
published_at: "2023-06-05T22:15:12+00:00"
first_seen_at: "2026-10-23T19:11:51+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-2023-3079", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3079", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Type confusion in V8 in Google Chrome prior to 114.0.5735.110 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 with a crafted HTML page. Exploitation in the wild is confirmed by CISA's KEV catalog, and an attacker can use it to run code in the browser.

_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 < 114.0.5735.110 fixed 114.0.5735.110
- vendor:fedoraproject fedora affected = 37 fixed ?
- vendor:fedoraproject fedora affected = 38 fixed ?
- vendor:debian linux affected = 11.0 fixed ?
- vendor:debian linux affected = 12.0 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 or edge://version) and compare the version to the fixed release in the vendor advisory.

## Fix

Update Google Chrome, Microsoft Edge, Opera or other Chromium-based browsers to the patched release named in the vendor advisory.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-3079
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2023-3079

## 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.

---

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