CVE-2003-0352 is a buffer overflow vulnerability in a DCOM interface exposed through Microsoft Windows RPC on Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003. A remote attacker can send a malformed RPC message to the vulnerable DCOM service and trigger memory corruption, leading to arbitrary code execution in the context of the affected service. The flaw was widely exploited by the Blaster and Nachi/Welchia worms, which used the vulnerability for unauthenticated network propagation. The issue is associated with Microsoft security bulletin MS03-026 and was later addressed again in MS03-039.
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What an attacker gets, and what they’ve been doing with it.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (2 hidden).
This repository contains a single Metasploit module implementing a weaponized exploit for the MS03-026 vulnerability (CVE-2003-0352), a stack buffer overflow in the Microsoft Windows RPC DCOM interface. The exploit targets Windows NT 4.0 SP3-6a, Windows 2000, Windows XP, and Windows 2003 systems by sending a specially crafted RPC request to the DCOM interface (UUID 4d9f4ab8-7d1c-11cf-861e-0020af6e7c57) over TCP port 135. The module is highly reliable and can deliver any Metasploit payload, with the default being a reverse shell. The code includes logic to handle multiple Windows versions and service pack levels, making it a universal exploit for this vulnerability. The only file present is a Ruby script structured as a standard Metasploit exploit module, leveraging the Metasploit framework's DCERPC library for network communication and payload delivery.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Windows DCOM vulnerability patched by Microsoft in MS03-026.
A critical buffer overflow in Microsoft Windows DCOM/RPC (RPCSS) that enables remote code execution and was leveraged by the Blaster (MSBlast/Lovsan) worm for self-propagation.
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.