Buffer overflow in Collaboration Data Objects (CDO), as used in Microsoft Windows and…
Priority MEDIUM 62CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.43446 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:exchange_server:2000:sp3:*:*:*:*:*:* | 2000 sp3 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:-:sp4:*:fr:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:-:*:*:*:*:*:itanium:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:-:*:*:*:*:*:x64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:r2:*:*:*:*:*:*:* | r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:sp1:*:*:*:*:*:*:* | sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:sp1:*:*:*:*:*:itanium:* | sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:-:*:*:*:*:*:x64:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:-:sp1:*:*:tablet_pc:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:tablet_pc:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:exchange_server:2000:sp3:*:*:*:*:*:* Versions 2000 sp3 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:-:sp4:*:fr:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:-:*:*:*:*:*:itanium:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:-:*:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:r2:*:*:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:sp1:*:*:*:*:*:*:* Versions sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:sp1:*:*:*:*:*:itanium:* Versions sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:-:*:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:-:sp1:*:*:tablet_pc:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:tablet_pc:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-1987
- 2026-10-03 Alias added: GHSA-pfww-hw2q-8mc3
References
Patch 1
Advisory 11
- Q907245
- oval:org.mitre.oval:def:581
- oval:org.mitre.oval:def:1406
- VU#883460
- oval:org.mitre.oval:def:848
- oval:org.mitre.oval:def:1515
- oval:org.mitre.oval:def:1420
- oval:org.mitre.oval:def:1201
- oval:org.mitre.oval:def:1130
- TA05-284A
- 20051012 [SEC-1 Advisory] Collaboration Data Objects Buffer Overflow Vulnerability
More Microsoft Exchange Server vulnerabilities
- TI-2024-14170 Microsoft Exchange Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2022-19610 Microsoft Exchange Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-13547 Microsoft Exchange Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-13502 Microsoft Exchange Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-08465 Microsoft Exchange Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2023-07929 Microsoft Exchange Server Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2005-1987 · CVE Program
- CVE-2005-1987 · NVD
- FIRST EPSS
- GHSA-pfww-hw2q-8mc3 · GitHub Advisory Database · CC BY 4.0
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