CVE-2023-5727 Affecting firefox-esr package, versions <119.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.86% (54th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17764706
  • published1 Jul 2026
  • disclosed25 Oct 2023

Introduced: 25 Oct 2023

CVE-2023-5727  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 119.0-r0 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 Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer.
Note: This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVSS Base Scores

version 3.1