Vulnerability · Published Feb 4, 2025 · Assigned by mozilla
CVE-2025-1014Certificate length was not properly checked
High 8.8
In plain English
A high-severity improper certificate validation 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 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 66.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Certificate length was not properly checked when added to a certificate store. In practice only trusted data was processed. 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-2025-1014 |
| Debian:12 | firefox-esr | 128.7.0esr-1~deb12u1 | DSA-5858-1 |
| Debian:13 | firefox-esr | 128.7.0esr-1 | DEBIAN-CVE-2025-1014 |
| Debian:14 | firefox-esr | 128.7.0esr-1 | DEBIAN-CVE-2025-1014 |
| Debian:12 | thunderbird | 1:128.7.0esr-1~deb12u1 | DEBIAN-CVE-2025-1014 |
| Debian:12 | thunderbird | 1:128.7.0esr-1~deb12u1 | DSA-5861-1 |
| Debian:13 | thunderbird | 1:128.7.0esr-1 | DEBIAN-CVE-2025-1014 |
| Debian:14 | thunderbird | 1:128.7.0esr-1 | DEBIAN-CVE-2025-1014 |
| 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-2025-1014 |
| Ubuntu:24.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2025-1014 |
| Ubuntu:24.04:LTS | mozjs115 | no fix listed | UBUNTU-CVE-2025-1014 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2025-1014 |
| Ubuntu:22.04:LTS | mozjs91 | no fix listed | UBUNTU-CVE-2025-1014 |
| Ubuntu:22.04:LTS | thunderbird | 1:128.12.0+build1-0ubuntu0.22.04.1 | UBUNTU-CVE-2025-1014 |
| 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-295 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1940804
- 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