---
id: CVE-2025-1414
title: Memory safety bugs present in Firefox 135
summary: >-
  Memory safety bugs present in Firefox 135. Some of these bugs showed evidence
  of memory corruption and we presume that with enough effort some of these
  could have been exploited to run arbitrary code. This vulnerability was fixed
  in Fire…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-787
vendor: mozilla
product: firefox
affected:
  - firefox < 135.0.1
patched:
  - firefox 135.0.1
published: '2025-02-18'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T19:10:01.007'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-1414'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=1943179'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2025-12/'
    label: security@mozilla.org
tags:
  - nvd
epss: 0.00453
epssPercentile: 0.36958
ingestedAt: '2026-09-30T19:21:07.226Z'
---

## Overview

Memory safety bugs present in Firefox 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 135.0.1.

## Affected

- `firefox < 135.0.1`

## Remediation

Upgrade past the affected range:

- `firefox 135.0.1`