CVE-2018-8378
mediumpriority · track · 25EPSS 0.073 · 94 %ileEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (40)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8378cnnvd
- https://portal.msrc.microsoft.com/zh-CN/security-guidance/advisory/CVE-2018-8378Patchcnnvd
- https://www.securityfocus.com/bid/104996cnnvd
- http://www.securityfocus.com/bid/104996enisa_euvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8378enisa_euvd
- http://www.securityfocus.com/bid/104996Third Party AdvisoryVDB Entrynvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8378PatchVendor Advisorynvd
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