A use-after-free vulnerability exists in Microsoft Internet Explorer 8 due to improper handling of SLayoutRun objects. When a crafted web page triggers access to a previously deleted SLayoutRun object, it can result in memory corruption and allow remote code execution.
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 (1 hidden).
This repository contains a single Metasploit module (ms13_009_ie_slayoutrun_uaf.rb) that exploits a use-after-free vulnerability (CVE-2013-0025) in Microsoft Internet Explorer 8 on Windows XP SP3. The module sets up an HTTP server that serves a malicious HTML page with embedded JavaScript. When a vulnerable browser visits the page, the JavaScript performs a heap spray and triggers the use-after-free condition, allowing arbitrary code execution. The payload is customizable and can be any Metasploit-compatible shellcode. The module includes logic to select the appropriate target based on the User-Agent string and supports JavaScript obfuscation. The main attack vector is browser-based, requiring the victim to visit the attacker's server. The only fingerprintable endpoint is the HTTP server set up by the module to deliver the exploit.
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.
No public activity tracked yet. Mallory keeps watching.
No public activity observed for this vulnerability.
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.