---
id: "CVE-2025-5419"
kind: "vulnerability"
aliases: ["CVE-2025-5419"]
title: "Out of bounds read and write in V8 in Google Chrome prior to 137.0.7151.68 allowed a remote attacker to potentially\u2026"
severity: "high"
cvss: 8.8
epss: null
exploited: true
status: "open"
category: "other"
products: [{"name": "Google Chromium V8", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "google chrome", "fixed": ["137.0.7151.68"], "affected": "< 137.0.7151.68", "ecosystem": "vendor"}, {"name": "microsoft edge chromium", "fixed": ["137.0.3296.62"], "affected": "< 137.0.3296.62", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["browsers", "chrome", "chromium", "edge", "exploited", "opera", "other"]
not_affected_if: ["browser-already-updated"]
published_at: "2025-06-03T00:15:21+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-5419", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5419", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# Out of bounds read and write in V8 in Google Chrome prior to 137.0.7151.68 allowed a remote attacker to potentially…

A flaw in the V8 JavaScript engine used by Chromium lets a crafted web page read and write outside the bounds of a buffer, which can corrupt heap memory. An attacker who gets a victim to open the page can potentially 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 < 137.0.7151.68 fixed 137.0.7151.68
- vendor:microsoft edge chromium affected < 137.0.3296.62 fixed 137.0.3296.62

## How to check

Open chrome://version (or edge://version) and compare the Chromium version against the fixed release in the vendor advisory.

## Fix

Update Google Chrome, Microsoft Edge, Opera and other Chromium-based browsers to a release that includes the vendor fix.
Apply the vendor mitigations; CISA says to discontinue use of the product if mitigations are unavailable.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-5419
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-5419

## From the sources

Google Chromium V8 contains an out-of-bounds read and write vulnerability that could allow 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 mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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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_