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CVE-2017-5070 is a type-confusion vulnerability in the V8 JavaScript engine affecting Google Chrome before 59.0.3071.86 on Linux, Windows, and macOS, and before 59.0.3071.92 on Android. A remote attacker can use a crafted HTML page to execute arbitrary code inside the browser sandbox. The vulnerability has also been exploited through email-parsing XSS in applications embedding outdated Chromium through the Chromium Embedded Framework (CEF), and has been incorporated into the MOONSHINE exploit framework.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Google Chrome vulnerability used as Exploit #4 in the MOONSHINE Android exploit kit.
A Chromium vulnerability targeted by the MOONSHINE exploit kit against Android apps embedding vulnerable Chrome versions 56 through 58.
A Chromium vulnerability exploited through an outdated Chromium engine embedded in a Windows email client's CEF framework. The reported attack chained an email-parsing XSS flaw with CVE-2017-5070 exploit code to execute downloader shellcode and install a Trojan. The report notes that CEF applications generally lacked sandboxing, simplifying the attack chain.
A Google Chrome vulnerability with public exploit code, used by MOONSHINE against vulnerable Android 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.