Use-after-free vulnerability in DirectShow in Microsoft DirectX 8.1 and 9.0 allows remote…
Priority MEDIUM 64CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-94.
Summary
Use-after-free vulnerability in DirectShow in Microsoft DirectX 8.1 and 9.0 allows remote attackers to execute arbitrary code via an MJPEG file or video stream with a malformed Huffman table, which triggers an exception that frees heap memory that is later accessed, aka "MJPEG Decompression Vulnerability."
Why it matters now
EPSS 0.31808 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 · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:a:microsoft:directx:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:directx:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:directx:9.0a:*:*:*:*:*:*:* | 9.0a | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:directx:9.0b:*:*:*:*:*:*:* | 9.0b | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:directx:9.0c:*:*:*:*:*:*:* | 9.0c | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:*:*:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:*:sp1:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:*:sp1:itanium:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* | all versions | Running on | Microsoft |
- cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:a:microsoft:directx:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:directx:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:directx:9.0a:*:*:*:*:*:*:* Versions 9.0a Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:directx:9.0b:*:*:*:*:*:*:* Versions 9.0b Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:directx:9.0c:*:*:*:*:*:*:* Versions 9.0c Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:*:sp1:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:*:sp1:itanium:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* Versions all versions Running on ·Microsoft
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_xp:*:*:pro_x64:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp2:pro_x64:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* | all versions | Running on | Microsoft |
- cpe:2.3:o:microsoft:windows_xp:*:*:pro_x64:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp2:pro_x64:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* Versions all versions Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-0084
- 2026-10-03 Alias added: GHSA-r85w-v686-f8j6
References
More Microsoft Directx vulnerabilities
- TI-2009-01458 Unspecified vulnerability in the QuickTime Movie Parser Filter in quartz.dll in… KEVCVSS 3.1HIGH 8.8
- TI-2008-01384 Stack-based buffer overflow in Microsoft DirectX 7.0 and 8.1 on Windows 2000 SP4 allows… CVSS 2.0HIGH 9.3
- TI-2007-03780 Stack-based buffer overflow in the DirectShow Synchronized Accessible Media Interchange… CVSS 2.0HIGH 8.5
- TI-2007-03775 Buffer overflow in Microsoft DirectShow in Microsoft DirectX 7.0 through 10.0 allows… CVSS 2.0HIGH 9.3
- TI-2008-00010 Microsoft DirectX 8.1 through 9.0c, and DirectX on Microsoft XP SP2 and SP3, Server 2003… CVSS 2.0HIGH 9.3
- TI-2009-01460 The QuickTime Movie Parser Filter in quartz.dll in DirectShow in Microsoft DirectX 7.0… CVSS 2.0HIGH 9.3
Sources
- CVE-2009-0084 · CVE Program
- CVE-2009-0084 · NVD
- FIRST EPSS
- GHSA-r85w-v686-f8j6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences