Loading vulnerability…
CVE-2013-0074 is a memory-safety vulnerability in Microsoft Silverlight 5 and Silverlight 5 Developer Runtime before version 5.1.20125.0 on Windows and Mac. Incorrect memory-pointer validation during HTML object rendering allows a specially crafted Silverlight application to access memory unsafely and execute arbitrary code with the current user's permissions. A web-based attack can deliver the application through a malicious or compromised website viewed in a browser capable of instantiating Silverlight applications. The vulnerability has been exploited in the wild and incorporated into exploit kits.
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 targeting Microsoft Silverlight (CVE-2013-0074, CVE-2013-3896) via a browser-based attack. The exploit abuses unsafe memory access in the ScriptObject.Initialize() method, allowing arbitrary code execution when a victim visits a malicious web page. The module serves a crafted Silverlight XAP package and DLL, along with a XAML manifest, to the victim's browser. The payload is customizable and typically results in a reverse shell or Meterpreter session. The exploit is effective against Windows XP SP3 and Windows 7 SP1 running Internet Explorer 6-10 with Silverlight enabled. The repository is structured as a single Ruby file compatible with the Metasploit framework, leveraging its BrowserExploitServer mixin to deliver the exploit and payload files dynamically based on incoming HTTP requests.
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.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Microsoft Silverlight remote code execution vulnerability referenced as exploited.
A vulnerability heavily used by ransomware variants (details not specified in content).
A vulnerability heavily used by ransomware variants.
A critical remote code execution vulnerability caused by incorrect memory-pointer checking when Microsoft Silverlight renders HTML objects. It affects Silverlight 5 and Silverlight 5 Developer Runtime builds before 5.1.20125.0 on Mac and supported Windows releases. Exploitation requires a user to view specially crafted Silverlight content in a compatible browser, potentially through an attacker-controlled or compromised website or an advertisement. Successful exploitation grants the current user's permissions, potentially allowing full system compromise when that user has administrative rights. Update KB2814124 fixes the flaw by upgrading Silverlight to version 5.1.20125.0. The bulletin also describes disabling Silverlight, using least-privileged accounts, Internet Explorer Enhanced Security Configuration, and EMET as workarounds or mitigating measures.
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.