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CVE-2024-21140 is a difficult-to-exploit vulnerability in the HotSpot component of Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition. The affected releases are Oracle Java SE 8u411, 8u411-perf, 11.0.23, 17.0.11, 21.0.3, and 22.0.1; Oracle GraalVM for JDK 17.0.11, 21.0.3, and 22.0.1; and Oracle GraalVM Enterprise Edition 20.3.14 and 21.3.10. An unauthenticated network attacker can exploit the issue through multiple protocols when an application exposes affected HotSpot APIs, such as through a web service that supplies attacker-controlled data to those APIs. The issue also affects Java client deployments that execute untrusted code in sandboxed Java Web Start applications or Java applets and rely on the Java sandbox for isolation.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.