CVE-2023-4580

MEDIUM

Firefox <117, Firefox ESR <115.2, Thunderbird <115.2 - Info Disclosure

Title source: llm

Description

Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

References (4)

[Issue Tracking, Permissions Required] https://bugzilla.mozilla.org/show_bug.cgi?id=1843046

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2023-34/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2023-36/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2023-38/

Scores

CVSS v3 6.5

EPSS 0.0007

EPSS Percentile 21.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-311

Status published

Products (3)

mozilla/firefox < 117.0

mozilla/firefox_esr < 115.2

mozilla/thunderbird < 115.2

Published Sep 11, 2023

Tracked Since Feb 18, 2026