CVE-2021-27055
mediumpriority · track · 28EPSS 0.025 · 85 %ileEURUUSEPSS · scored 2026-10-27
Microsoft Visio Security Feature Bypass Vulnerability
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedMicrosoft 365 Apps for Enterprise for 32-bit Systemsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft 365 Apps for Enterprise for 64-bit Systemsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 2019 for 32-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Office 2019 for 64-bit editionsmsrc_csaf
https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates - FixedMicrosoft Visio 2010 Service Pack 2 (32-bit editions)msrc_csaf
14.0.7266.5000:Security Update:https://support.microsoft.com/kb/4484376
https://support.microsoft.com/kb/4484376 - FixedMicrosoft Visio 2010 Service Pack 2 (64-bit editions)msrc_csaf
14.0.7266.5000:Security Update:https://support.microsoft.com/kb/4484376
https://support.microsoft.com/kb/4484376 - FixedMicrosoft Visio 2013 Service Pack 1 (32-bit editions)msrc_csaf
15.0.5327.1000:Security Update:https://support.microsoft.com/kb/4486673
https://support.microsoft.com/kb/4486673 - FixedMicrosoft Visio 2013 Service Pack 1 (64-bit editions)msrc_csaf
15.0.5327.1000:Security Update:https://support.microsoft.com/kb/4486673
https://support.microsoft.com/kb/4486673 - FixedMicrosoft Visio 2016 (32-bit edition)msrc_csaf
16.0.5134.1000:Security Update:https://support.microsoft.com/kb/4493151
https://support.microsoft.com/kb/4493151 - FixedMicrosoft Visio 2016 (64-bit edition)msrc_csaf
16.0.5134.1000:Security Update:https://support.microsoft.com/kb/4493151
https://support.microsoft.com/kb/4493151
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–7.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (35)
Products and version ranges known to be affected.
- Microsoft Microsoft 365 Apps for Enterprise16.0.1 → https://aka.ms/OfficeSecurityReleasesenisa_euvdEU
- Microsoft 365 Apps for Enterprise for 32-bit Systems< https://aka.ms/OfficeSecurityReleasesmsrc_csafUS
- Microsoft 365 Apps for Enterprise for 64-bit Systems< https://aka.ms/OfficeSecurityReleasesmsrc_csafUS
advisories (1)
Vendor and ecosystem advisories describing this.
- msrc_CVE-2021-27055Microsoft Visio Security Feature Bypass Vulnerability2021-03-09csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27055cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-27055cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27055cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27055enisa_euvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27055nvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27055PatchVendor Advisorynvd
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