---
id: "CVE-2026-124934"
page: "https://infrastack.ai/live/CVE-2026-124934"
kind: "vulnerability"
aliases: ["CVE-2026-124934"]
title: "Firefox: Security component spoofing flaw fixed in Firefox 160"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "firefox", "other"]
not_affected_if: ["already-updated"]
published_at: "2026-11-10T14:17:27+00:00"
first_seen_at: "2026-11-10T14:22:19+00:00"
updated_at: "2026-11-10T14:24:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124934", "first_seen_at": "2026-11-10T14:22:19+00:00"}]
exploit_sources: []
---

# Firefox: Security component spoofing flaw fixed in Firefox 160

Link for people: https://infrastack.ai/live/CVE-2026-124934 (this .md is for agents)

Mozilla fixed a spoofing issue in the Security component of Firefox, which can be used to make a user see or trust misleading content. The sources give no further detail on what an attacker can display or how it is triggered.

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

## How to check

- Check the installed Firefox version in the Help menu (About Firefox) or with `firefox --version`
- Compare against the fixed versions `160` and ESR `153.7`

## Fix

- Firefox: `160`
- Firefox ESR: `153.7`

## Timeline

- 2026-11-10T14:22:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124934

## From the sources

Spoofing issue in the Security component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_