---
title: "CVE-2023-4762: Google Chromium V8 Type Confusion Vulnerability"
url: https://erroneo.us/security/cve/CVE-2023-4762/
description: "CVE-2023-4762 (Google Chromium V8): Exploited in the wild (CISA KEV). Type Confusion in V8 in Google Chrome prior to 116.0.5845.179 allowed a remote…"
type: vulnerability-record
section: "Security Digest"
date_published: 2023-09-05
date_modified: 2025-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-4762"
kev: true
cvss: 8.8
epss: 0.41375
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-4762: Google Chromium V8 Type Confusion Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Google Chromium V8. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-02-06, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-02-27 ; treat that as the outer limit, not the target.
- EPSS 41.4% , percentile 99: FIRST’s model estimates a 41.4% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.

## What it is

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)

## Affected products (CVE record)

- Google Chrome: 116.0.5845.179 < 116.0.5845.179

## Severity

- CISA-ADP CVSS 3.1: 8.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2024-02-06; federal due date 2024-02-27. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 41.38% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Listed in CISA KEV notes (chromereleases.googleblog.com)](https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop.html)
- [CVE.org record CVE-2023-4762](https://www.cve.org/CVERecord?id=CVE-2023-4762)
- [NVD entry CVE-2023-4762](https://nvd.nist.gov/vuln/detail/CVE-2023-4762)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4762)
- [crbug.com](https://crbug.com/1473247)
- [debian.org](https://www.debian.org/security/2023/dsa-5491)
- [lists.fedoraproject.org](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27NR3KG553CG6LGPMP6SHWEVHTYPL6RC/)
- [lists.fedoraproject.org](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/)
- [lists.fedoraproject.org](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/)
- [security.gentoo.org](https://security.gentoo.org/glsa/202311-11)
- [msrc.microsoft.com](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4762)
- [security.gentoo.org](https://security.gentoo.org/glsa/202312-07)
- [security.gentoo.org](https://security.gentoo.org/glsa/202401-34)

---
Source page: https://erroneo.us/security/cve/CVE-2023-4762/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt