What is the severity of CVE-2025-3032?

CVE-2025-3032 has been classified as a high severity vulnerability due to its potential for privilege escalation.

How do I fix CVE-2025-3032?

To mitigate CVE-2025-3032, users should update Firefox and Thunderbird to version 137 or later.

What are the affected software versions for CVE-2025-3032?

CVE-2025-3032 affects Firefox versions less than 137 and Thunderbird versions less than 137.

What type of attacks does CVE-2025-3032 expose users to?

CVE-2025-3032 allows for privilege escalation attacks through leaking file descriptors.

Who is the vendor for CVE-2025-3032?

The vendor for CVE-2025-3032 is Mozilla, responsible for both Firefox and Thunderbird software.

Vulnerability/
CVE-2025-3032

high

7.4

CWE

403

EPSS

0.029%

1/4/2025

CVE-2025-3032

First published: Tue Apr 01 2025(Updated: )

Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks.

Credit: security@mozilla.org

Affected Software	Affected Version	How to fix
Firefox	<137	137
Thunderbird	<137	137

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

What is the severity of CVE-2025-3032?
CVE-2025-3032 has been classified as a high severity vulnerability due to its potential for privilege escalation.
How do I fix CVE-2025-3032?
To mitigate CVE-2025-3032, users should update Firefox and Thunderbird to version 137 or later.
What are the affected software versions for CVE-2025-3032?
CVE-2025-3032 affects Firefox versions less than 137 and Thunderbird versions less than 137.
What type of attacks does CVE-2025-3032 expose users to?
CVE-2025-3032 allows for privilege escalation attacks through leaking file descriptors.
Who is the vendor for CVE-2025-3032?
The vendor for CVE-2025-3032 is Mozilla, responsible for both Firefox and Thunderbird software.

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source/Mozilla
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agent/event
collector/nvd-api
source/NVD
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Frequently Asked Questions

What is the severity of CVE-2025-3032?
CVE-2025-3032 has been classified as a high severity vulnerability due to its potential for privilege escalation.
How do I fix CVE-2025-3032?
To mitigate CVE-2025-3032, users should update Firefox and Thunderbird to version 137 or later.
What are the affected software versions for CVE-2025-3032?
CVE-2025-3032 affects Firefox versions less than 137 and Thunderbird versions less than 137.
What type of attacks does CVE-2025-3032 expose users to?
CVE-2025-3032 allows for privilege escalation attacks through leaking file descriptors.
Who is the vendor for CVE-2025-3032?
The vendor for CVE-2025-3032 is Mozilla, responsible for both Firefox and Thunderbird software.