---
id: "CVE-2026-117980"
kind: "vulnerability"
aliases: ["CVE-2026-117980"]
title: "Firefox: use-after-free in Graphics component may allow code execution"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["desktop-browsers", "firefox", "runtime"]
not_affected_if: ["already-on-fixed-version"]
published_at: "2026-10-27T14:16:55+00:00"
first_seen_at: "2026-10-27T14:32:24+00:00"
updated_at: "2026-10-27T14:35:10+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117980", "first_seen_at": "2026-10-27T14:32:24+00:00"}]
---

# Firefox: use-after-free in Graphics component may allow code execution

A use-after-free bug in the Graphics component of Firefox lets memory be reused after it is freed. The sources do not state what an attacker gains beyond that, so exploitation impact is unconfirmed.

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

## How to check

- Run `firefox --version` (or check About Firefox) and compare against `159` or ESR `153.6`
- unknown

## Fix

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

## Timeline

- 2026-10-27T14:32:24+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-117980

## 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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