CVE-2022-45419

MEDIUM

Firefox < 107.0 - Improper Certificate Validation via Deleted Security Exception

Title source: llm
STIX 2.1

Description

If the user added a security exception for an invalid TLS certificate, opened an ongoing TLS connection with a server that used that certificate, and then deleted the exception, Firefox would have kept the connection alive, making it seem like the certificate was still trusted. This vulnerability affects Firefox < 107.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1716082

Scores

CVSS v3 6.5
EPSS 0.0020
EPSS Percentile 42.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-295
Status published
Products (1)
mozilla/firefox < 107.0
Published Dec 22, 2022
Tracked Since Feb 18, 2026