Missing Encryption of Sensitive Data Affecting firefox-esr package, versions <115.2.0esr-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.42% (36th percentile)

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  • Snyk IDSNYK-DEBIAN14-FIREFOXESR-11742878
  • published10 Aug 2025
  • disclosed11 Sept 2023

Introduced: 11 Sep 2023

CVE-2023-4580  (opens in a new tab)
CWE-311  (opens in a new tab)

How to fix?

Upgrade Debian:14 firefox-esr to version 115.2.0esr-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1