---
id: "CVE-2018-17463"
kind: "vulnerability"
aliases: ["CVE-2018-17463"]
title: "Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute\u2026"
severity: "high"
cvss: 8.8
epss: 0.84564
exploited: true
status: "open"
category: "runtime"
products: [{"name": "Google Chromium V8", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "google chrome", "fixed": ["70.0.3538.67"], "affected": "< 70.0.3538.67", "ecosystem": "vendor"}, {"name": "redhat enterprise linux desktop", "fixed": [], "affected": "= 6.0", "ecosystem": "vendor"}, {"name": "redhat enterprise linux server", "fixed": [], "affected": "= 6.0", "ecosystem": "vendor"}, {"name": "redhat enterprise linux workstation", "fixed": [], "affected": "= 6.0", "ecosystem": "vendor"}, {"name": "debian linux", "fixed": [], "affected": "= 9.0", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["browser-users", "chrome", "chromium", "edge", "exploited", "opera", "runtime"]
not_affected_if: ["fully-patched-browser"]
published_at: "2018-11-14T15:29:00+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-2018-17463", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2018-17463", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17463", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute…

A flaw in the V8 JavaScript engine used by Chromium lets a remote attacker run code inside the browser sandbox by serving a crafted HTML page. Attackers are actively exploiting it, per CISA's Known Exploited Vulnerabilities catalog.

_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 < 70.0.3538.67 fixed 70.0.3538.67
- vendor:redhat enterprise linux desktop affected = 6.0 fixed ?
- vendor:redhat enterprise linux server affected = 6.0 fixed ?
- vendor:redhat enterprise linux workstation affected = 6.0 fixed ?
- vendor:debian linux affected = 9.0 fixed ?

## How to check

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

## Fix

Update Chrome, Edge, Opera or other Chromium-based browsers to a release that includes the vendor fix (CISA: apply updates per vendor instructions).

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-17463
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2018-17463
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2018-17463

## From the sources

Google Chromium V8 Engine contains an unspecified vulnerability that allows a remote attacker to execute code inside a sandbox 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_