Vulnerability · Published Feb 4, 2025 · Assigned by mozilla
CVE-2025-1011A bug in WebAssembly code generation could result in a crash
Critical 9.8
In plain English
A critical-severity code injection in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 49.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | firefox | 128.7.0-1.el8_10 | ALSA-2025:1283 |
| AlmaLinux:9 | firefox | 128.7.0-1.el9_5 | ALSA-2025:1066 |
| AlmaLinux:9 | firefox-x11 | 128.7.0-1.el9_5 | ALSA-2025:1066 |
| AlmaLinux:8 | thunderbird | 128.7.0-1.el8_10.alma.1 | ALSA-2025:1292 |
| AlmaLinux:9 | thunderbird | 128.7.0-1.el9_5.alma.1 | ALSA-2025:1184 |
| Debian:12 | firefox-esr | 128.7.0esr-1~deb12u1 | DEBIAN-CVE-2025-1011 |
| Debian:12 | firefox-esr | 128.7.0esr-1~deb12u1 | DSA-5858-1 |
| Debian:13 | firefox-esr | 128.7.0esr-1 | DEBIAN-CVE-2025-1011 |
| Debian:14 | firefox-esr | 128.7.0esr-1 | DEBIAN-CVE-2025-1011 |
| Debian:12 | thunderbird | 1:128.7.0esr-1~deb12u1 | DEBIAN-CVE-2025-1011 |
| Debian:12 | thunderbird | 1:128.7.0esr-1~deb12u1 | DSA-5861-1 |
| Debian:13 | thunderbird | 1:128.7.0esr-1 | DEBIAN-CVE-2025-1011 |
| Debian:14 | thunderbird | 1:128.7.0esr-1 | DEBIAN-CVE-2025-1011 |
| Rocky Linux:8 | firefox | 0:128.7.0-1.el8_10 | RLSA-2025:1283 |
| Rocky Linux:8 | thunderbird | 0:128.7.0-1.el8_10 | RLSA-2025:1292 |
| Ubuntu:22.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2025-1011 |
| Ubuntu:24.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2025-1011 |
| Ubuntu:24.04:LTS | mozjs115 | no fix listed | UBUNTU-CVE-2025-1011 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2025-1011 |
| Ubuntu:22.04:LTS | mozjs91 | no fix listed | UBUNTU-CVE-2025-1011 |
| Ubuntu:22.04:LTS | thunderbird | 1:128.12.0+build1-0ubuntu0.22.04.1 | UBUNTU-CVE-2025-1011 |
| Ubuntu:22.04:LTS | thunderbird | 1:128.12.0+build1-0ubuntu0.22.04.1 | USN-7663-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | see references |
| Mozilla | Thunderbird | see references |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1936454
- https://www.mozilla.org/security/advisories/mfsa2025-07/
- https://www.mozilla.org/security/advisories/mfsa2025-09/
- https://www.mozilla.org/security/advisories/mfsa2025-10/
- https://www.mozilla.org/security/advisories/mfsa2025-11/
- https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html
- https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html