---
id: "CVE-2026-117972"
kind: "vulnerability"
aliases: ["CVE-2026-117972"]
title: "Firefox: Graphics component use-after-free fixed in version 159"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browser", "desktop", "firefox", "runtime"]
not_affected_if: ["firefox-159-or-later", "firefox-esr-153.6-or-later"]
published_at: "2026-10-27T14:16:55+00:00"
first_seen_at: "2026-10-27T14:32:24+00:00"
updated_at: "2026-10-27T14:35:17+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117972", "first_seen_at": "2026-10-27T14:32:24+00:00"}]
---

# Firefox: Graphics component use-after-free fixed in version 159

A use-after-free bug in Firefox's Graphics component lets memory be reused after it is freed. The sources do not state what an attacker can achieve with it.

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

## How to check

- Check the installed Firefox version with `firefox --version` and compare against `159` or ESR `153.6`
- unknown

## Fix

- Update Firefox to `159` or Firefox ESR to `153.6`
- unknown

## Timeline

- 2026-10-27T14:32:24+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-117972

## From the sources

Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

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