CVE-2024-4774 Affecting firefox-esr package, versions <126-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17764861
  • published1 Jul 2026
  • disclosed14 May 2024

Introduced: 14 May 2024

CVE-2024-4774  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 126-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 ShmemCharMapHashEntry() code was susceptible to potentially undefined behavior by bypassing the move semantics for one of its data members. This vulnerability affects Firefox < 126.

CVSS Base Scores

version 3.1