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.
CVE-2005-0560
- High exploitation likelihood — EPSS 69%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 99.3%
- KEV
- Not listed
Published
May 2, 2005
Last Modified
June 16, 2026
References (16)
- secure@microsofthttp://marc.info/?l=bugtraq&m=111393947713420&w=2
- secure@microsofthttp://secunia.com/advisories/14920/
- secure@microsofthttp://www.kb.cert.org/vuls/id/275193
- secure@microsofthttp://www.osvdb.org/displayvuln.php?osvdb_id=15467
- secure@microsofthttp://www.us-cert.gov/cas/techalerts/TA05-102A.html
- secure@microsofthttp://xforce.iss.net/xforce/alerts/id/193
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-021
- secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4032
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=111393947713420&w=2
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/14920/
- af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/275193
- af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/displayvuln.php?osvdb_id=15467
- af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/cas/techalerts/TA05-102A.html
- af854a3a-2127-422b-91ae-364da2661108http://xforce.iss.net/xforce/alerts/id/193
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-021
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 20× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-13 22:24 UTCEPSS rescore
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- 2026-06-08 14:13 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 13:55 UTCEG score recompute
- 2026-05-31 13:55 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-26 07:16 UTCEPSS rescore
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- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-21 22:38 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
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- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-947✓ verifiedFirst seen Apr 19, 2005
Microsoft Exchange Server - Remote Code Execution (MS05-021)
Open source ↗
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Same CWE
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- CVE-2010-20115EG 9.3CRITICAL
- CVE-2010-4398NVD 7.8EG 9.0 KEVEPSS 94%HIGH
- CVE-2010-3333NVD 7.8EG 9.0 KEVEPSS 100%HIGH
- CVE-2010-2883NVD 7.3EG 9.0 KEVEPSS 100%HIGH
- CVE-2010-1297NVD 7.8EG 9.0 KEVEPSS 100%HIGH
- CVE-2009-3953NVD 8.8EG 9.0 KEVEPSS 100%HIGH
- CVE-2009-3129NVD 7.8EG 9.0 KEVEPSS 100%HIGH
Frequently asked(4)
What is CVE-2005-0560?
When was CVE-2005-0560 disclosed?
Is CVE-2005-0560 actively exploited?
How do I remediate CVE-2005-0560?
Dependency Blast Radius
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