CVE-2005-1987

Buffer overflow in Collaboration Data Objects (CDO), as used in Microsoft Windows and Microsoft Exchange Server, allows remote attackers to execute arbitrary code when CDOSYS or CDOEX processes an e-mail message with a large header name, as demonstrated using the "Content-Type" string.

Published: 2005-10-13 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-1987 is rated High Risk (69.3/100): CVSS High severity, with high exploitation likelihood (EPSS 57.02%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.01% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2005-1987

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-28 52.02% 57.02% +5.01%
2 2025-12-27 57.02% 52.02% -5.01%
3 2025-11-11 — 57.02% —

Full EPSS history (20 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-1987

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-1987

Affected software / configurations for CVE-2005-1987

Vendor Product Version Raw CPE
microsoft exchange_server 2000 cpe:2.3:a:microsoft:exchange_server:2000:sp3:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:-:sp4:*:fr:*:*:*:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:-:*:*:*:*:*:itanium:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:-:*:*:*:*:*:x64:*
microsoft windows_server_2003 r2 cpe:2.3:o:microsoft:windows_server_2003:r2:*:*:*:*:*:*:*
microsoft windows_server_2003 sp1 cpe:2.3:o:microsoft:windows_server_2003:sp1:*:*:*:*:*:*:*
microsoft windows_server_2003 sp1 cpe:2.3:o:microsoft:windows_server_2003:sp1:*:*:*:*:*:itanium:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:*:*:*:*:*:x64:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp1:*:*:tablet_pc:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:tablet_pc:*:*:*

References for CVE-2005-1987

URL Tags
http://archives.neohapsis.com/archives/fulldisclosure/2005-10/0289.html Broken Link
http://marc.info/?l=bugtraq&m=112915118302012&w=2 Mailing List Third Party Advisory
http://secunia.com/advisories/17167 Third Party Advisory
http://securitytracker.com/id?1015038 Third Party Advisory VDB Entry
http://securitytracker.com/id?1015039 Third Party Advisory VDB Entry
http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ907245
http://www.kb.cert.org/vuls/id/883460 Third Party Advisory US Government Resource
http://www.osvdb.org/19905 Broken Link
http://www.securityfocus.com/bid/15067 Third Party Advisory VDB Entry
http://www.us-cert.gov/cas/techalerts/TA05-284A.html Third Party Advisory US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-048 Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/22495 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1130 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1201 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1406 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1420 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1515 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A581 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A848 Third Party Advisory
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