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Microsoft XML Core Services (aka MSXML) 3.0 does not properly handle HTTP responses, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted response, aka "Msxml2.XMLHTTP.3.0 Response Handling Memory Corruption Vulnerability."
Use CWE-94, Microsoft vendor hub and Xml Core Services product page to widen CVE-2010-2561 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2012-1889, CVE-2017-0022 and CVE-2013-0007 for nearby disclosures in the same product family. Additional editorial context is available in Weekly Security Roundup: Navigating the April 2026 Threat Landscape and Critical Framework Exploits.