Loading vulnerability…
CVE-2010-0840 is a Java Runtime Environment vulnerability in Oracle Java SE and Java for Business 6 Update 18, 5.0 Update 23, and 1.4.2_25. The flaw is reportedly related to improper checks when privileged JRE methods are executed. An untrusted object extending a trusted class without modifying a particular method, or a similar interface trust issue, can bypass the intended trust boundary and execute arbitrary code. The issue is also known as the Trusted Methods Chaining Remote Code Execution Vulnerability.
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.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (modules/exploits/multi/browser/java_trusted_chain.rb) that exploits CVE-2010-0840, a privilege escalation vulnerability in the Java Runtime Environment (JRE) affecting version 6 prior to update 19 and version 5 prior to update 23. The exploit works by serving a malicious Java applet (Exploit.jar) via an HTTP server. When a victim visits the attacker's server with a vulnerable Java-enabled browser, the applet is loaded and leverages the trusted method chain vulnerability to execute arbitrary code with the privileges of the Java process. The module supports multiple platforms (Java, Windows, Linux) and can deliver a variety of payloads, such as reverse shells or Meterpreter sessions. The structure is typical for a Metasploit browser exploit: it sets up an HTTP server, serves the malicious applet, and handles the resulting session. The main fingerprintable endpoints are the Exploit.jar file and its contained Java classes. The module is weaponized and ready for operational use within the Metasploit framework.
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.
1 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.