FKIE_CVE-2006-6696
Vulnerability from fkie_nvd - Published: 2006-12-22 02:28 - Updated: 2026-06-16 22:33
Severity
Summary
Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| microsoft | windows_2000 | * | |
| microsoft | windows_2000 | * | |
| microsoft | windows_2000 | * | |
| microsoft | windows_2000 | * | |
| microsoft | windows_2000 | * | |
| microsoft | windows_2003_server | datacenter_edition | |
| microsoft | windows_2003_server | datacenter_edition | |
| microsoft | windows_2003_server | datacenter_edition | |
| microsoft | windows_2003_server | enterprise_edition | |
| microsoft | windows_2003_server | enterprise_edition | |
| microsoft | windows_2003_server | sp1 | |
| microsoft | windows_2003_server | standard | |
| microsoft | windows_2003_server | standard | |
| microsoft | windows_2003_server | standard | |
| microsoft | windows_2003_server | web | |
| microsoft | windows_2003_server | web | |
| microsoft | windows_2003_server | web | |
| microsoft | windows_vista | * | |
| microsoft | windows_vista | * | |
| microsoft | windows_vista | * | |
| microsoft | windows_vista | * | |
| microsoft | windows_xp | * | |
| microsoft | windows_xp | * | |
| microsoft | windows_xp | * | |
| microsoft | windows_xp | * | |
| microsoft | windows_xp | * | |
| microsoft | windows_xp | * | |
| microsoft | windows_xp | * | |
| microsoft | windows_xp | * |
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL."
},
{
"lang": "es",
"value": "Vulnerabilidad de liberaci\u00f3n de memoria doble en Microsoft Windows 2000, XP, 2003, y Vista, permite a usuarios locales obtener privilegios llamando a la funci\u00f3n MessageBox con un mensaje MB_SERVICE_NOTIFICATION con datos manipulados, lo cual env\u00eda un mensaje HardError al proceso Subsistema de servidor en ejecuci\u00f3n de Cliente/Servidor (CSSRSS), que no es gestionado apropiadamente cuando se invocan las funciones UserHardError y GetHardErrorText en WINSRV.DLL.\r\n"
}
],
"id": "CVE-2006-6696",
"lastModified": "2026-06-16T22:33:37.030",
"metrics": {
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{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.9,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 10.0,
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"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
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"published": "2006-12-22T02:28:00.000",
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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