CVE-2024-10459Network attack vector

Application crash via accessibility layout use-after-free

Published Oct 29, 2024 · Updated Nov 3, 2025

A layout use-after-free in affected Mozilla Firefox, Firefox ESR, and Thunderbird releases allows attackers to crash the application. TableAwareParentFor reads freed layout-frame memory after PushNameOrDescriptionChange calls LocalAccessible::Name inside an unsafe layout path instead of deferring the notification. The flaw requires accessibility to be enabled and user interaction with attacker-controlled content; the demonstrated consequence is an application crash.

CVSS severity6.5
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A layout use-after-free in affected Mozilla Firefox, Firefox ESR, and Thunderbird releases allows attackers to crash the application. TableAwareParentFor reads freed layout-frame memory after PushNameOrDescriptionChange calls LocalAccessible::Name inside an unsafe layout path instead of deferring the notification. The flaw requires accessibility to be enabled and user interaction with attacker-controlled content; the demonstrated consequence is an application crash.

The record

CVE
CVE-2024-10459
Published
Oct 29, 2024
Updated
Nov 3, 2025
Vendor
Mozilla
Product
Firefox
Classifications
CWE-416, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <132

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mozilla · Firefoxversion=unspecified <132
Mozilla · Thunderbirdversion=unspecified <128.4; version=unspecified <132
Mozilla · Firefox ESRversion=unspecified <115.17; version=unspecified <128.4

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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