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. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

Other sources

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. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.

— Red Hat

Affected Software

23 affected componentsFixes available
Mozilla Firefox ESR<115.29
115.29
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
ubuntu/mozjs52*
ubuntu/mozjs38*
ubuntu/mozjs68*
ubuntu/mozjs52*
ubuntu/mozjs102*
ubuntu/mozjs78*
ubuntu/mozjs91*
ubuntu/thunderbird<1:140.7.1+build1-0ubuntu0.22.04.1
1:140.7.1+build1-0ubuntu0.22.04.1
ubuntu/mozjs102*
ubuntu/mozjs115*
Mozilla Firefox<144
144
Mozilla Firefox ESR<140.4
140.4
Mozilla Thunderbird<140.4
140.4
debian/firefox
160.0-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.7.0esr-1~deb12u1140.15.0esr-1~deb13u1153.7.0esr-1~deb13u1153.5.1esr-1153.7.0esr-1
debian/thunderbird
1:140.12.0esr-1~deb12u11:153.7.0esr-1~deb12u11:140.12.0esr-1~deb13u11:153.7.0esr-1~deb13u11:153.5.0esr-11:153.7.0esr-1

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 144
  3. Upgrade

    Upgrade ubuntu/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:140.7.1+build1-0ubuntu0.22.04.1
  4. Upgrade

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

    Fixed in 140.4
  5. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 160.0-1
  6. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.7.0esr-1~deb12u1Fixed in 140.15.0esr-1~deb13u1Fixed in 153.7.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.7.0esr-1
  7. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.7.0esr-1~deb12u1Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.7.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.7.0esr-1
  8. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 144
  9. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.29
  10. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 140.4
  11. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 144
  12. 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
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected 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 OSV·01:15 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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