Critical severity9.0OSV Advisory· Published May 1, 2025· Updated Apr 15, 2026

CVE-2025-47154

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."

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Ladybirdbrowser/LadybirdOSV2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: < f5a6704

Patches

Vulnerability mechanics

References

github.com/LadybirdBrowser/ladybird/commit/f5a670421954fc7130c3685b713c621b29516669nvd
jessie.cafe/posts/pwning-ladybirds-libjs/nvd
news.ycombinator.com/itemnvd

News mentions

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cvss	0.585
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000