A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
History

Mon, 13 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
Title firefox: thunderbird: A bug in WebAssembly code generation could result in a crash A bug in WebAssembly code generation could result in a crash

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


Tue, 15 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00074}

epss

{'score': 0.00104}


Thu, 13 Feb 2025 01:00:00 +0000

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

Fri, 07 Feb 2025 14:30:00 +0000

Type Values Removed Values Added
Title firefox: thunderbird: A bug in WebAssembly code generation could result in a crash
First Time appeared Redhat
Redhat enterprise Linux
Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Els
Redhat rhel Eus
Redhat rhel Tus
Weaknesses CWE-119
CPEs cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:rhel_aus:8.2
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
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Els
Redhat rhel Eus
Redhat rhel Tus
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 06 Feb 2025 20:00:00 +0000

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

Wed, 05 Feb 2025 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-94
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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


Tue, 04 Feb 2025 14:15:00 +0000

Type Values Removed Values Added
Description A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2025-02-04T13:58:53.239Z

Updated: 2026-04-13T14:25:12.907Z

Reserved: 2025-02-04T07:26:29.564Z

Link: CVE-2025-1011

cve-icon Vulnrichment

Updated: 2025-11-03T20:56:51.660Z

cve-icon NVD

Status : Modified

Published: 2025-02-04T14:15:31.887

Modified: 2026-04-13T15:16:49.467

Link: CVE-2025-1011

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-04T13:58:53Z

Links: CVE-2025-1011 - Bugzilla