---
id: "CVE-2026-3909"
kind: "vulnerability"
aliases: ["CVE-2026-3909"]
title: "Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of\u2026"
severity: "high"
cvss: 8.8
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "Google Skia", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "google chrome", "fixed": ["146.0.7680.80"], "affected": "< 146.0.7680.80", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["android", "browser-users", "chrome", "chromeos", "exploited", "flutter", "vendor"]
not_affected_if: ["no-chromium-or-flutter-in-use"]
published_at: "2026-03-13T00:00:00+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-3909", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3909", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of…

Google Skia, the 2D graphics library used by Chrome, Android, and Flutter, has an out-of-bounds write bug. A remote attacker who gets a user to load a crafted HTML page can corrupt memory and may run code.

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

## Affected

- vendor:Google Skia affected ? fixed ?
- vendor:google chrome affected < 146.0.7680.80 fixed 146.0.7680.80

## How to check

Check whether the team ships or runs Chrome, Chromium-based apps, Android WebView, or Flutter apps, and note their versions.

## Fix

Update Chrome, ChromeOS, Android, and Flutter to the vendor's patched builds, per Google's advisory.
CISA says to apply vendor mitigations, or stop using the product if no mitigation exists.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-3909
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-3909

## From the sources

Google Skia contains an out-of-bounds write vulnerability that could allow a remote attacker to perform out of bounds memory access via a crafted HTML page. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.

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_