CVE-2025-47154

State: Published
Severity: 9.0 Critical
Published: May 1, 2025
Updated: May 1, 2025
Reserved: May 1, 2025

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."

Scores

CVSS	Score	Vector	Source
3.1	9.0 Critical	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H	mitre

Weaknesses

CWE-820 Missing Synchronization

Affected Products

Product	Versions
LadybirdLadybird	before f5a670421954fc7130c3685b713c621b29516669Affected

References

https://news.ycombinator.com/item?id=43852096
https://jessie.cafe/posts/pwning-ladybirds-libjs/
https://github.com/LadybirdBrowser/ladybird/commit/f5a670421954fc7130c3685b713c621b29516669

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