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Vulnerabilities

Vulnerability · CVE-2023-32049

Microsoft Windows Defender SmartScreen Security Feature Bypass Vulnerability

Published Jul 11, 2023 · catalog updated Jun 16, 2026 · Microsoft Windows

Patch now

CVE-2023-32049 is in the CISA known-exploited catalog, due Aug 1, 2023. Confirm Microsoft Windows against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
4.16%
Remediation
Remediation guidance
Affected products
cpe microsoft/windows 10 1607 · cpe microsoft/windows 10 1809 · cpe microsoft/windows 10 21h2 · cpe microsoft/windows 10 22h2 · cpe microsoft/windows 11 21h2 · cpe microsoft/windows 11 22h2

Microsoft Windows Defender SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the Open File - Security Warning prompt.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1809version unspecified
  • cpe microsoft/windows 10 21h2version unspecified
  • cpe microsoft/windows 10 22h2version unspecified
  • cpe microsoft/windows 11 21h2version unspecified
  • cpe microsoft/windows 11 22h2version unspecified
  • cpe microsoft/windows server 2016version unspecified
  • cpe microsoft/windows server 2019version unspecified
  • vendor Microsoft Windowsversion unspecified

How to fix CVE-2023-32049

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-32049 is in the CISA known-exploited catalog, due Aug 1, 2023. Confirm Microsoft Windows against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 4.16%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 11, 2023 · Catalog

    Detected

    Microsoft Windows Defender SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the Open File - Security Warning prompt.

  2. Jul 11, 2023 · CISA KEV

    Known exploited

    Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

  3. Aug 1, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

  4. Jun 16, 2026 · Catalog

    Updated

    Microsoft Windows Defender SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the Open File - Security Warning prompt.

Sources

  • CISA KEVConfirmed exploitationCVE-2023-32049

    Microsoft Windows Defender SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the Open File - Security Warning prompt.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-32049

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-32049

    30-day exploitation probability 4.2%

    first.org
  • NIST NVDVulnerability recordCVE-2023-32049

    Windows SmartScreen Security Feature Bypass Vulnerability

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2023-32049

    Microsoft Windows Defender SmartScreen contains a security feature bypass vulnerability that allows an attacker to bypass the Open File - Security Warning prompt.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.