Medium severity5.5NVD Advisory· Published Aug 15, 2018· Updated Jun 17, 2026

CVE-2018-8378

Description

An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Office Information Disclosure Vulnerability." This affects Word, Microsoft SharePoint Server, Microsoft Office Word Viewer, Microsoft Excel Viewer, Microsoft SharePoint, Microsoft Office.

Affected products

Microsoft/Office Word Viewerllm-create
Microsoft/Sharepoint Serverllm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 2013 Service Pack 1
Microsoft/Wordllm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: Automation Services on Microsoft SharePoint Server 2010 Service Pack 2
Microsoft/Excel Viewercpe-rescue
Range: 2007 Service Pack 3
Microsoft/Office Visiocpe-rescue
Range: 2010 Service Pack 2 (32-bit editions)
Microsoft/Word Viewercpe-rescue
Range: Microsoft Office Word Viewer
Microsoft/Office SharePointcpe-rescue
Range: Enterprise Server 2013 Service Pack 1

Patches

Vulnerability mechanics

References

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8378nvdPatchVendor Advisory
www.securityfocus.com/bid/104996nvdThird Party AdvisoryVDB Entry

News mentions

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cvss	0.358
epss	0.005
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000