Loading vulnerability…
CVE-2004-0363 is a stack-based buffer overflow in the SymSpamHelper ActiveX component (symspam.dll) shipped with Norton AntiSpam 2004 and used by Norton Internet Security 2004. The vulnerable control is marked safe for scripting, increasing exposure to web content. The flaw is triggered by supplying an overly long parameter to the LaunchCustomRuleWizard method, causing a stack buffer overflow that can be exploited remotely through malicious web content or HTML email that instantiates the control.
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 a stack buffer overflow vulnerability in the SymSpamHelper ActiveX control (SymSpamBlockingUI.SymSpamHelper.1) provided by Norton AntiSpam 2004 (symspam.dll version 2004.1.0.147). The exploit is delivered via a malicious HTML page served by the Metasploit framework, which uses JavaScript to instantiate the vulnerable ActiveX control in Internet Explorer and trigger the LaunchCustomRuleWizard method with an overly long string, resulting in arbitrary code execution. The payload is customizable and delivered via heap spray. The module targets Windows XP (SP0-SP3) and Windows Vista systems running Internet Explorer 6 or 7 with the vulnerable ActiveX control installed. The repository is structured as a single Ruby file compatible with the Metasploit framework, and leverages both Ruby and JavaScript for exploitation.
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 and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.