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CVE-2025-7656 is a high-severity integer overflow vulnerability in the V8 JavaScript engine used by Google Chrome. It affects Google Chrome prior to version 138.0.7204.157. The flaw can be triggered when a target processes attacker-controlled web content, such as a crafted HTML page, leading to heap corruption. Available reporting also associates the issue with the V8 Maglev JIT compiler. Because the vulnerability corrupts heap state in a browser process handling untrusted JavaScript and HTML content, successful exploitation may enable further memory corruption outcomes beyond a crash, depending on exploit reliability and surrounding mitigations.
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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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in the V8 Maglev JIT compiler that researchers used to demonstrate code execution in Cursor and Windsurf via a malicious deeplink and the embedded browser component.
An integer overflow vulnerability in Google Chrome's V8 JavaScript engine (CVE-2025-7656) that can be exploited for denial of service and potentially arbitrary code execution in applications embedding outdated Chromium, such as Cursor and Windsurf IDEs.
A high-severity integer overflow vulnerability in the V8 JavaScript engine of Google Chrome.
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.