CVE-2025-11710: Cross-process information leaked due to malicious IPC messages

Published Oct 14, 2025
·
Updated

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process.

Affected Software

10 affected componentsFixes available
Mozilla Firefox ESR<115.29
115.29
Mozilla Thunderbird<140.4
140.4
Mozilla Firefox ESR<140.4
140.4
Mozilla Firefox<144
144
Mozilla Thunderbird<144
144
Mozilla Firefox<115.29.0
Mozilla Firefox<144.0
Mozilla Firefox>=116.0<140.4.0
Mozilla Thunderbird<140.4.0
Mozilla Thunderbird>=141.0<144.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 115.29
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 140.4
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 144
  4. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 144
  5. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.29
  6. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 140.4
  7. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 144
  8. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 140.4

Event History

Oct 14, 2025
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
Updated
via Mozilla·12:00 AM
Affected Software
CVE Published
via MITRE·12:27 PM
Data Sourced
via MITRE·12:27 PM
Description
Data Sourced
via Red Hat·01:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·01:15 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-11710?

CVE-2025-11710 has been classified as a critical severity vulnerability due to the potential for memory disclosure.

2

How do I fix CVE-2025-11710?

To fix CVE-2025-11710, update your Mozilla Firefox or Thunderbird to the latest version provided by Mozilla.

3

What products are affected by CVE-2025-11710?

CVE-2025-11710 affects Mozilla Firefox ESR up to version 115.29, Mozilla Thunderbird up to version 140.4, and standard Mozilla Firefox up to version 144.

4

What type of attack is associated with CVE-2025-11710?

CVE-2025-11710 is associated with attacks that exploit IPC messages in a web process to leak memory from the privileged browser process.

5

Is user intervention required for CVE-2025-11710?

Yes, user intervention is required to apply the necessary updates to mitigate CVE-2025-11710.

Company

Resources

Contact

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