CVE-2018-8147

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CVE

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle obje

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8148, CVE-2018-8162.

HIGH · CVSS 7.8 EPSS 0.3391

Schedule remediation

EPSS ≥ 0.10 - elevated exploitation probability
EPSS percentile: top 3% of all CVEs by exploitation likelihood
CVSS base score ≥ 7.0

Sigma rules13 YARA rules0

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Affected Products & Versions

microsoft excelall versions
microsoft officeall versions
microsoft office compatibility packall versions
microsoft office for macall versions

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

producthighPython Function Execution Security Warning Disabled In Excel

producthighPotential Excel.EXE DCOM Lateral Movement Via ActivateMicrosoftApp

producthighPotential Persistence Via Excel Add-in - Registry

producthighPython Function Execution Security Warning Disabled In Excel - Registry

productmediumMicrosoft Excel Add-In Loaded From Uncommon Location

producthighSuspicious Microsoft Office Child Process - MacOS

Show all 13 top matchesproducthighCode Executed Via Office Add-in XLL File
producthighPotential Persistence Via Microsoft Office Add-In
producthighPotential Persistence Via Microsoft Office Startup Folder
producthighFile With Uncommon Extension Created By An Office Application
producthighOffice Macro File Creation From Suspicious Process
producthighUncommon File Created In Office Startup Folder
producthighPotentially Suspicious Office Document Executed From Trusted Location

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Scoring & Timeline

7.8

HIGH · CVSS v3.0 · secure@microsoft.com

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD09 May 2018 · 07:29 PM

CVSS VectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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Vendor Advisories

msrcCVE-2018-8147Remote Code Execution

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://www.securityfocus.com/bid/104035Third Party AdvisoryVDB Entry

http://www.securitytracker.com/id/1040857Third Party AdvisoryVDB Entry

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8147PatchVendor Advisory

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