Type Confusion in Google Chrome V8
CVE-2025-10585 is a high-severity type confusion vulnerability in Google Chrome's V8 JavaScript and WebAssembly engine. According to the provided content, Chrome versions prior to 140.0.7339.185 are affected. A remote attacker can trigger the flaw by convincing a user to visit a crafted HTML page, leading to heap corruption in the browser process. The issue was reported by Google Threat Analysis Group on 2025-09-16, and Google stated that exploitation exists in the wild at the time of disclosure.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Affected products & vendors
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.
Recent activity
177 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Chrome zero-day type confusion vulnerability in the V8 engine reported as exploited in the wild.
Type confusion bug in Chrome V8 described as actively exploited in the wild.
A type confusion vulnerability in Google Chrome V8 engine, exploited as a zero-day for sandbox escape in espionage campaigns.
A V8 type confusion vulnerability in Chrome, allowing heap corruption and arbitrary code execution via crafted HTML pages. Exploited in the wild.
The version that knows your environment.
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.