CVE-2005-0560: Microsoft Exchange Server

High severity, CVSS 7.5. EPSS: 69.5% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the SvrAppendReceivedChunk function in xlsasink.dll in the SMTP service of Exchange Server 2000 and 2003 allows remote attackers to execute arbitrary code via a crafted X-LINK2STATE extended verb request to the SMTP port.

Affected products

• Microsoft Exchange Server: version 2000 only; version 2003 only

Published 2005-05-02. Last modified 2026-06-16.