---
id: "CVE-2026-124896"
page: "https://infrastack.ai/live/CVE-2026-124896"
kind: "vulnerability"
aliases: ["CVE-2026-124896"]
title: "Firefox: invalid pointer in text layout and fonts can crash or be exploited"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: [{"name": "Firefox", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["browser", "desktop", "firefox", "other"]
not_affected_if: ["firefox-160-or-later", "firefox-esr-153.7-or-later"]
published_at: "2026-11-10T14:17:23+00:00"
first_seen_at: "2026-11-10T14:22:16+00:00"
updated_at: "2026-11-10T14:24:57+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124896", "first_seen_at": "2026-11-10T14:22:16+00:00"}]
exploit_sources: []
---

# Firefox: invalid pointer in text layout and fonts can crash or be exploited

Link for people: https://infrastack.ai/live/CVE-2026-124896 (this .md is for agents)

Firefox has an invalid pointer bug in its Layout: Text and Fonts component, which handles how text and fonts are drawn on a page. The sources do not say what an attacker can do with it beyond the memory error itself.

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

## Affected

- vendor:Firefox affected range not listed fixed no fixed version listed

## How to check

- Check the Firefox version with Help > About Firefox, or `firefox --version` on the command line.
- Compare it with the fixed releases: Firefox `160` or Firefox ESR `153.7`.

## Fix

- Firefox `160`
- Firefox ESR `153.7`

## Timeline

- 2026-11-10T14:22:16+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124896

## From the sources

Invalid pointer in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.

---

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