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01 Record

CVE-2018-8627

An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft

UnratedPUBLISHEDCNA: microsoft
CNA base scoreUnratedNo CNA CVSS vector

02 Description

An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
8.62% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 94.8% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2018-12-12 00:00Z7 YR AGO
Last updated
2024-08-05 07:02Z2 YR AGO
Reserved
2018-03-14
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-908Use of Uninitialized ResourceBase
Data version
5.1
Document digest
800c1a71b09634690b13eb15da7b4cfadcbe1933c12b47c60d60f32f8074026f

05 Affected products

VendorProductVersionsPlatforms
MicrosoftMicrosoft Office2010 Service Pack 2 (32-bit editions), 2010 Service Pack 2 (64-bit editions), 2016 for Mac, 2019 for 32-bit editions, 2019 for 64-bit editions, 2019 for Mac, Compatibility Pack Service Pack 3—
MicrosoftMicrosoft Excel2010 Service Pack 2 (32-bit editions), 2010 Service Pack 2 (64-bit editions), 2013 RT Service Pack 1, 2013 Service Pack 1 (32-bit editions), 2013 Service Pack 1 (64-bit editions), 2016 (32-bit edition), 2016 (64-bit edition)—
MicrosoftMicrosoft Excel Viewer2007 Service Pack 3—
MicrosoftExcelServices on Microsoft SharePoint Server 2010 Service Pack 2—
MicrosoftOffice365 ProPlus for 32-bit Systems, 365 ProPlus for 64-bit Systems—

06 References