Microsoft Windows SmartScreen Security Feature Bypass Vulnerability

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. Mar 14, 2023 · Catalog

   Detected

   Microsoft Windows SmartScreen contains a security feature bypass vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file.

2. Mar 14, 2023 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. Apr 4, 2023 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Jun 16, 2026 · Catalog

   Updated

   Microsoft Windows SmartScreen contains a security feature bypass vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file.

Affected

• cpe microsoft/windows 10 1607version unspecified
• cpe microsoft/windows 10 1809version unspecified
• cpe microsoft/windows 10 20h2version 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
• vendor Microsoft Windowsversion unspecified

Sources

• CISA KEVConfirmed exploitationCVE-2023-24880

  Microsoft Windows SmartScreen contains a security feature bypass vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file.

  cisa.gov
• CVE.orgVulnerability recordCVE-2023-24880

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2023-24880

  30-day exploitation probability 78.0%

  first.org
• NIST NVDVulnerability recordCVE-2023-24880

  Windows SmartScreen Security Feature Bypass Vulnerability

  nvd.nist.gov

References

• CISA note · msrc.microsoft.com
• Patch · msrc.microsoft.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov