CVE-2025-1931
Mozilla Firefox WebTransport Use-After-Free Vulnerability
Description
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
INFO
Published Date :
March 4, 2025, 2:15 p.m.
Last Modified :
April 3, 2025, 1:29 p.m.
Source :
security@mozilla.org
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2025-1931
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-1931.
| URL | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1944126 | Issue Tracking |
| https://www.mozilla.org/security/advisories/mfsa2025-14/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-15/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-16/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-17/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-18/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-1931 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-1931 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by nvd@nist.gov
Apr. 03, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 128.8.0 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions from (including) 129.0 up to (excluding) 136.0 *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 136.0 *cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* versions up to (excluding) 115.21.0 *cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* versions from (including) 116.0 up to (excluding) 128.8.0 Added Reference Type Mozilla Corporation: https://bugzilla.mozilla.org/show_bug.cgi?id=1944126 Types: Issue Tracking Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2025-14/ Types: Vendor Advisory Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2025-15/ Types: Vendor Advisory Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2025-16/ Types: Vendor Advisory Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2025-17/ Types: Vendor Advisory Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2025-18/ Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 26, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-416 -
CVE Modified by security@mozilla.org
Mar. 05, 2025
Action Type Old Value New Value Changed Description It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, and Firefox ESR < 128.8. It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. Added Reference https://www.mozilla.org/security/advisories/mfsa2025-17/ Added Reference https://www.mozilla.org/security/advisories/mfsa2025-18/ -
New CVE Received by security@mozilla.org
Mar. 04, 2025
Action Type Old Value New Value Added Description It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, and Firefox ESR < 128.8. Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1944126 Added Reference https://www.mozilla.org/security/advisories/mfsa2025-14/ Added Reference https://www.mozilla.org/security/advisories/mfsa2025-15/ Added Reference https://www.mozilla.org/security/advisories/mfsa2025-16/
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-1931 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-1931
weaknesses.