CVE-2011-3263 (GCVE-0-2011-3263)
Vulnerability from cvelistv5 – Published: 2011-08-19 21:00 – Updated: 2024-08-06 23:29
VLAI
EPSS
VEX
Summary
zabbix_agentd in Zabbix before 1.8.6 and 1.9.x before 1.9.4 allows context-dependent attackers to cause a denial of service (CPU consumption) by executing the vfs.file.cksum command for a special device, as demonstrated by the /dev/urandom device.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://www.zabbix.com/rn1.8.6.php | x_refsource_CONFIRM |
| https://support.zabbix.com/browse/ZBX-3794 | x_refsource_CONFIRM |
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entryx_refsource_XF |
Date Public
2011-08-04 00:00
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"matchCriteriaId": "C075AE6C-3CAB-4E4C-AB00-F4D63C55190A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:zabbix:zabbix:1.9.3:alpha:*:*:*:*:*:*",
"matchCriteriaId": "7A4B67CC-F273-4964-8989-8485B2FFF6D7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "zabbix_agentd in Zabbix before 1.8.6 and 1.9.x before 1.9.4 allows context-dependent attackers to cause a denial of service (CPU consumption) by executing the vfs.file.cksum command for a special device, as demonstrated by the /dev/urandom device."
},
{
"lang": "es",
"value": "zabbix_agentd en Zabbix antes de las versiones v1.8.6 y v1.9.x antes de v1.9.4 permite provocar una denegaci\u00f3n de servicio (por consumo de CPU) a atacantes (dependiendo del contexto) mediante la ejecuci\u00f3n de la orden vfs.file.cksum de un dispositivo especial, por ejemplo el dispositivo /dev/urandom."
}
],
"id": "CVE-2011-3263",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2011-08-19T21:55:02.757",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "http://www.zabbix.com/rn1.8.6.php"
},
{
"source": "cve@mitre.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69378"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit"
],
"url": "https://support.zabbix.com/browse/ZBX-3794"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://www.zabbix.com/rn1.8.6.php"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69378"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "https://support.zabbix.com/browse/ZBX-3794"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-399"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-11-21T12:56:09+00:00",
"cve": "CVE-2011-3263",
"id": "CVE-2011-3263",
"initial_release_date": "2011-08-04T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "zabbix: multiple flaws in zabbix \u003c 1.8.6",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-3263.json",
"version": "3"
}
}
}
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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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