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CVE-2021-36927

Microsoft Windows 7, Windows 7 Service Pack 1, Windows 8.1

CVE-2021-36927 affects Microsoft Windows 7, Windows 7 Service Pack 1, Windows 8.1. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS
7.8
EPSS
0.53%
42.5% percentile
CISA KEV
Not listed
Published
2021.08.13
PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.53%
Technical severityCVSS 7.8

Vulnerability overview

CVE-2021-36927 affects Microsoft Windows 7, Windows 7 Service Pack 1, Windows 8.1. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Affected product and versions

Product
Microsoft Windows 7, Windows 7 Service Pack 1, Windows 8.1
Affected versions
>= 6.1.0 < 6.1.7601.25898, >= 6.3.0 < 6.3.9600.20303, >= 6.1.7601.0 < 6.1.7601.25898, >= 6.0.6003.0 < 6.0.6003.21416, >= 6.2.9200.0 < 6.2.9200.23645, >= 6.3.9600.0 < 6.3.9600.20303, r2
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Microsoft Windows 7, Windows 7 Service Pack 1, Windows 8.1 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-269