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.

Project Subscriptions

Vendors Products
Mozilla Subscribe
Firefox Subscribe
Thunderbird Subscribe
Enterprise Linux Subscribe
Rhel Aus Subscribe
Rhel E4s Subscribe
Rhel Els Subscribe
Rhel Eus Subscribe
Rhel Tus Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4078-1 firefox-esr security update
Debian DLA Debian DLA DLA-4081-1 thunderbird security update
Debian DSA Debian DSA DSA-5874-1 firefox-esr security update
Debian DSA Debian DSA DSA-5876-1 thunderbird security update
EUVD EUVD EUVD-2025-7436 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.
Ubuntu USN Ubuntu USN USN-7334-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-7663-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 03 Nov 2025 21:30:00 +0000

Type Values Removed Values Added
References

Thu, 03 Apr 2025 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Vendors & Products Mozilla
Mozilla firefox
Mozilla thunderbird

Wed, 26 Mar 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Fri, 14 Mar 2025 03:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/a:redhat:rhel_aus:8.2
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els

Mon, 10 Mar 2025 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Eus
Redhat rhel Tus
CPEs cpe:/a:redhat:rhel_aus:8.4
cpe:/a:redhat:rhel_aus:8.6
cpe:/a:redhat:rhel_e4s:8.4
cpe:/a:redhat:rhel_e4s:8.6
cpe:/a:redhat:rhel_e4s:9.0
cpe:/a:redhat:rhel_eus:8.8
cpe:/a:redhat:rhel_eus:9.2
cpe:/a:redhat:rhel_eus:9.4
cpe:/a:redhat:rhel_tus:8.4
cpe:/a:redhat:rhel_tus:8.6
Vendors & Products Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Eus
Redhat rhel Tus

Fri, 07 Mar 2025 02:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:8

Thu, 06 Mar 2025 02:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux

Wed, 05 Mar 2025 03:00:00 +0000

Type Values Removed Values Added
Title firefox: Use-after-free in WebTransportChild
Weaknesses CWE-416
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H'}

threat_severity

Important


Wed, 05 Mar 2025 00:00:00 +0000

Type Values Removed Values 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. 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.
References

Tue, 04 Mar 2025 13:45:00 +0000

Type Values Removed Values 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.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-11-03T20:57:15.155Z

Reserved: 2025-03-04T12:29:26.311Z

Link: CVE-2025-1931

cve-icon Vulnrichment

Updated: 2025-11-03T20:57:15.155Z

cve-icon NVD

Status : Modified

Published: 2025-03-04T14:15:37.963

Modified: 2025-11-03T21:18:53.337

Link: CVE-2025-1931

cve-icon Redhat

Severity : Important

Publid Date: 2025-03-04T13:31:23Z

Links: CVE-2025-1931 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses