CVE-2018-0833

View on CVE.org

Published Feb 15, 2018 CVSS 3.0 · 5.3 Medium EPSS 40.2% KEV · Not listed

Description

The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka "SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability".

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Microsoft Corporation

Server Message Block

affected

Version	Status	Constraints
`Windows 8.1 and RT 8.1 and Windows Server 2012 R2`	affected	—

Configuration 1 [-]

OR	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available

Metrics

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 40.2% (40.159% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.securityfocus.com/bid/102924
http://www.securitytracker.com/id/1040375
https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833
https://www.exploit-db.com/exploits/44189/

History

No history.

Subscriptions

Microsoft Windows 8.1 Windows Rt 8.1 Windows Server 2012

Weaknesses

CWE-476

Sources

CVE record Updated: Sep 17, 2024, 1:21 AM

Status: PUBLISHED
Assigner: microsoft
Published: Feb 15, 2018, 2:00 AM
Updated: Sep 17, 2024, 1:21 AM
Reserved: Dec 1, 2017, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 1:31 AM

Status: Modified
Published: Feb 15, 2018, 2:29 AM
Modified: Jun 17, 2026, 1:31 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "Server Message Block", "vendor": "Microsoft Corporation", "versions": [{"status": "affected", "version": "Windows 8.1 and RT 8.1 and Windows Server 2012 R2"}]}], "datePublic": "2018-02-13T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka \"SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability\"."}], "problemTypes": [{"descriptions": [{"description": "Moderate", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-04-04T16:57:02.000Z", "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft"}, "references": [{"name": "102924", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/102924"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833"}, {"name": "1040375", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1040375"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833"}, {"name": "44189", "tags": ["exploit", "x_refsource_EXPLOIT-DB"], "url": "https://www.exploit-db.com/exploits/44189/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secure@microsoft.com", "DATE_PUBLIC": "2018-02-13T00:00:00", "ID": "CVE-2018-0833", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Server Message Block", "version": {"version_data": [{"version_value": "Windows 8.1 and RT 8.1 and Windows Server 2012 R2"}]}}]}, "vendor_name": "Microsoft Corporation"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka \"SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability\"."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Moderate"}]}]}, "references": {"reference_data": [{"name": "102924", "refsource": "BID", "url": "http://www.securityfocus.com/bid/102924"}, {"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833", "refsource": "CONFIRM", "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833"}, {"name": "1040375", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1040375"}, {"name": "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833", "refsource": "MISC", "url": "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833"}, {"name": "44189", "refsource": "EXPLOIT-DB", "url": "https://www.exploit-db.com/exploits/44189/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T03:35:49.457Z"}, "title": "CVE Program Container", "references": [{"name": "102924", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/102924"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833"}, {"name": "1040375", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1040375"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833"}, {"name": "44189", "tags": ["exploit", "x_refsource_EXPLOIT-DB", "x_transferred"], "url": "https://www.exploit-db.com/exploits/44189/"}]}]}, "cveMetadata": {"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "cveId": "CVE-2018-0833", "datePublished": "2018-02-15T02:00:00.000Z", "dateReserved": "2017-12-01T00:00:00.000Z", "dateUpdated": "2024-09-17T01:21:53.733Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "Server Message Block", "vendor": "Microsoft Corporation", "versions": [{"status": "affected", "version": "Windows 8.1 and RT 8.1 and Windows Server 2012 R2"}]}], "source": "secure@microsoft.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*", "matchCriteriaId": "E93068DB-549B-45AB-8E5C-00EB5D8B5CF8", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*", "matchCriteriaId": "C6CE5198-C498-4672-AF4C-77AB4BE06C5C", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka \"SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability\"."}, {"lang": "es", "value": "El cliente Microsoft Server Message Block 2.0 y 3.0 (SMBv2/SMBv3) en Windows 8.1 y RT 8.1 y Windows Server 2012 R2 permite una vulnerabilidad de denegaci\u00f3n de servicio (DoS) debido a la forma en la que se gestionan las peticiones especialmente manipuladas. Esto tambi\u00e9n se conoce como \"SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability\"."}], "id": "CVE-2018-0833", "lastModified": "2026-06-17T01:31:45.620", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 6.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:S/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-02-15T02:29:02.373", "references": [{"source": "secure@microsoft.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/102924"}, {"source": "secure@microsoft.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040375"}, {"source": "secure@microsoft.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833"}, {"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833"}, {"source": "secure@microsoft.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/44189/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/102924"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040375"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/44189/"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}