CVE-2025-1014

HIGH

Firefox < 128.7.0 and < 135.0 - Improper Certificate Validation

Title source: llm

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.

References (6)

Core 6

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html

Permissions Required

https://bugzilla.mozilla.org/show_bug.cgi?id=1940804

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-07/

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-09/

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-10/

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-11/

Scores

CVSS v3 8.8

EPSS 0.0036

EPSS Percentile 27.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-295

Status published

Products (8)

mozilla/firefox < 128.7.0

mozilla/firefox < 135.0

Mozilla/Firefox 128.7 - 128.*

Mozilla/Firefox 135

mozilla/thunderbird 128.0.1 - 128.7.0

Mozilla/Thunderbird 128.7 - 128.*

mozilla/thunderbird 131.0 - 135.0

Mozilla/Thunderbird 135

Published Feb 04, 2025

Tracked Since Feb 18, 2026