FKIE_CVE-2007-4473
Vulnerability from fkie_nvd - Published: 2007-12-17 21:46 - Updated: 2026-06-16 22:44
Severity
Summary
Gesytec Easylon OPC Server before 2.3.44 does not properly validate server handles, which allows remote attackers to execute arbitrary code or cause a denial of service via unspecified network traffic to the OLE for Process Control (OPC) interface, probably related to free operations on arbitrary memory addresses through certain Remove functions, and read and write operations on arbitrary memory addresses through certain Set, Read, and Write functions.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| gesytec_easylon | opc_server | 2.30.32 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cret@cert.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gesytec_easylon:opc_server:2.30.32:*:*:*:*:*:*:*",
"matchCriteriaId": "213D3C21-4A3D-411B-B557-5D3C96B6049B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Gesytec Easylon OPC Server before 2.3.44 does not properly validate server handles, which allows remote attackers to execute arbitrary code or cause a denial of service via unspecified network traffic to the OLE for Process Control (OPC) interface, probably related to free operations on arbitrary memory addresses through certain Remove functions, and read and write operations on arbitrary memory addresses through certain Set, Read, and Write functions."
},
{
"lang": "es",
"value": "Gesytec Easylon OPC Server anterior a 2.3.44 no valida adecuadamente manejadores de servidor, lo cual permite a atacantes remotos ejecutar c\u00f3digo de su elecci\u00f3n o provocar denegaci\u00f3n de servicio a trav\u00e9s de un tr\u00e1fico de red espec\u00edfico en el OLE para las interfaces Process Control (OPC), probablemente relacionado con operaciones libres sobre direcciones de memoria de su elecci\u00f3n a trav\u00e9s de ciertas funciones Remove, y leer y escribir operaciones sobre direcciones de memoria de su elecci\u00f3n a trav\u00e9s de ciertas funciones para asignar, leer y escribir."
}
],
"id": "CVE-2007-4473",
"lastModified": "2026-06-16T22:44:09.850",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 10.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2007-12-17T21:46:00.000",
"references": [
{
"source": "cret@cert.org",
"url": "http://osvdb.org/42650"
},
{
"source": "cret@cert.org",
"url": "http://secunia.com/advisories/28079"
},
{
"source": "cret@cert.org",
"tags": [
"Patch",
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/205073"
},
{
"source": "cret@cert.org",
"url": "http://www.neutralbit.com/downloads/NB-NB-001-EXT-OPC%20Security%20Testing.pdf"
},
{
"source": "cret@cert.org",
"url": "http://www.neutralbit.com/en/rd/opctest/"
},
{
"source": "cret@cert.org",
"url": "http://www.securityfocus.com/bid/26876"
},
{
"source": "cret@cert.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/39062"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://osvdb.org/42650"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/28079"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/205073"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.neutralbit.com/downloads/NB-NB-001-EXT-OPC%20Security%20Testing.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.neutralbit.com/en/rd/opctest/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/26876"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/39062"
}
],
"sourceIdentifier": "cret@cert.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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