Loading vulnerability…
CVE-2021-21224 is a type confusion vulnerability in the V8 JavaScript engine used by Google Chrome. In affected Chrome versions prior to 90.0.4430.85, a remote attacker can trigger incorrect type handling in V8 via a crafted HTML page containing malicious JavaScript, leading to memory corruption in the renderer process. Public and in-the-wild exploitation reporting indicates the flaw was used to obtain out-of-bounds access and build exploitation primitives such as address disclosure, fake object creation, and arbitrary read/write within the sandboxed Chromium renderer. The vulnerability enables arbitrary code execution in the renderer context and has been used as the browser-entry component of multi-stage exploit chains.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Chromium V8 type confusion vulnerability that enables arbitrary code execution in a sandboxed renderer process and was used as the browser-side component of an exploit chain.
A Google Chrome remote code execution vulnerability tied to V8 issue 1195777; a public exploit was released and the article suspects it was probably used as the browser RCE component in the attack chain.
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.