CVE-2025-47154

Published: May 1, 2025Modified: Jun 17, 2026Deferred

9.0

Vector

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

Exploitability: 2.2 / Impact: 6.0

Source: MITRE (Secondary)

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."

Related CWEs

CWE-820

Missing Synchronization

The product utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource.

References (4)

https://github.com/LadybirdBrowser/ladybird/commit/f5a670421954fc7130c3685b713c621b29516669

Source: cve@mitre.org

https://jessie.cafe/posts/pwning-ladybirds-libjs/

Source: cve@mitre.org

https://news.ycombinator.com/item?id=43852096

Source: cve@mitre.org

https://jessie.cafe/posts/pwning-ladybirds-libjs/

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.