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CVE-2016-1646 is an out-of-bounds read vulnerability in the Google V8 implementation of Array.prototype.concat in builtins.cc. V8 did not properly consider element data types when concatenating arrays. In Google Chrome versions before 49.0.2623.108, crafted JavaScript can trigger the flaw remotely, causing a denial of service and potentially other unspecified effects.
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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.
If you can’t patch tonight, do this now.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Google Chrome vulnerability used as one of the Android browser exploits in the MOONSHINE exploit kit.
A Chromium vulnerability targeted by the MOONSHINE exploit kit against Android apps embedding vulnerable Chrome versions.
A Google Chrome vulnerability (used here as part of the MOONSHINE Android exploit kit) enabling browser exploitation on specific Chrome versions.
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.