CVE-2025-47154

CRITICAL9.0

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

Published May 1, 2025

Modified 1 years ago

Details

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."

References

WEB

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

DETECTION

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

WEB

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

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-47154

CVSS Analysis

CVSS v3.1

9.0