CVE-2021-27053

mediumpriority · track · 29EPSS 0.046 · 92 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

4.58% (92nd) EPSS

CVSS 6.8 · medium

Is it mine?

21 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Microsoft Excel Remote Code Execution Vulnerability

cvss

Technical severity, 0–10. One row per scoring source.

8.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.18highAV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.8 · impact 5.9

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94US

affected products (21)

Products and version ranges known to be affected.

Microsoft Microsoft 365 Apps for Enterprise16.0.1 → https://aka.ms/OfficeSecurityReleasesenisa_euvdEU
Microsoft Microsoft Excel 2010 Service Pack 213.0.0.0 → publicationenisa_euvdEU
Microsoft Microsoft Excel 2013 Service Pack 115.0.0.0 → publicationenisa_euvdEU
Microsoft Microsoft Excel 201616.0.0.0 → publicationenisa_euvdEU
Microsoft Microsoft Office 201919.0.0 → https://aka.ms/OfficeSecurityReleasesenisa_euvdEU
Microsoft Microsoft Office Online Server16.0.1 → publicationenisa_euvdEU
Microsoft Microsoft Office Web Apps Server 2013 Service Pack 115.0.1 → publicationenisa_euvdEU
Microsoft Corp Microsoft 365 Apps for Enterpriseall versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2013 RT Service Pack 1all versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2013 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Microsoft Excel 2016all versionsfstec_bduRU
Microsoft Corp Microsoft Office 2019all versionsfstec_bduRU
Microsoft Corp Microsoft Office Web Apps 2013 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Office Online Serverall versionsfstec_bduRU
microsoft 365 appsall versionsnvdUScpe:2.3:a:microsoft:365_apps:*:*:*:*:*:*:*:*
microsoft excel= 2010nvdUScpe:2.3:a:microsoft:excel:*:*:*:*:*:*:*:*
microsoft excel= 2013nvdUScpe:2.3:a:microsoft:excel:*:*:*:*:*:*:*:*
microsoft excel= 2016nvdUScpe:2.3:a:microsoft:excel:*:*:*:*:*:*:*:*
microsoft office= 2019nvdUScpe:2.3:a:microsoft:office:*:*:*:*:*:*:*:*
microsoft office online serverall versionsnvdUScpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:*

showing 20 of 21

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-03-11modified 2026-08-19

references (9)

External citations — patches, advisories, analysis.

scry

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