Heap-based buffer overflow in the SvrAppendReceivedChunk function in xlsasink.dll in the SMTP service of Exchange Server 2000 and 2003…

Description

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.

Scores

EPSS (exploitation in 30 days)

69.5% · top 0.6% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a
• CWE-787 (opens in a new tab)All about CWE-787 and its CVEs

Affected products

• n/a

  • affected n/a

References (8)

• oval:org.mitre.oval:def:4032 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• MS05-021 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
• 14920 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• VU#275193 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
• 15467 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• 20050412 Microsoft Exchange Remote Compromise (opens in a new tab)third-party-advisoryx_refsource_ISSx_transferred
• TA05-102A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
• 20050419 MS05-021 Microsoft Exchange X-LINK2STATE Heap Overflow PoC (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2005-0560](https://trackcve.app/badge/CVE-2005-0560.svg)](https://trackcve.app/cve/CVE-2005-0560)

Record last updated 7 Aug 2024, 21:21 UTC.