CVE-2025-47154

CriticalCVSS 9.0/10Last modified Jun 17, 2026

Description

LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references, leading to a use-after-free, and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says "Ladybird is in a pre-alpha state, and only suitable for use by developers."

Metrics

CVSS 3.1 9.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-820

Affected software

No affected versions have been published.

Timeline

Published: May 1, 2025
Last modified: Jun 17, 2026
NVD status: Deferred

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