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CVE-2025-13630 is a high-severity type confusion vulnerability in the V8 JavaScript and WebAssembly engine used by Google Chrome. It affects Google Chrome versions prior to 143.0.7499.41. According to the provided content, a remote attacker can trigger the flaw by convincing a user to load a crafted HTML page, leading to heap corruption. The issue is described as a V8 type confusion condition and is mapped to CWE-843. Supporting context indicates the flaw can be reached through crafted web content and may result in arbitrary code execution.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity flaw in the V8 JavaScript engine involving type confusion that can cause heap corruption and contribute to remote code execution when chained.
Specific non-Microsoft CVE republished by Microsoft for Microsoft Edge (Chromium-based).
A republished non-Microsoft CVE affecting Microsoft Edge (Chromium-based).
A type confusion vulnerability in Chrome’s V8 JavaScript engine that can lead to heap corruption and arbitrary code execution via crafted web content.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.