Microsoft Windows Scripting Engine Memory Corruption 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. Jul 16, 2021 · Catalog

   Detected

   Microsoft Windows Scripting Engine contains an unspecified vulnerability that allows for memory corruption.

2. Nov 3, 2021 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. Nov 17, 2021 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Aug 10, 2026 · Catalog

   Updated

   Microsoft Windows Scripting Engine contains an unspecified vulnerability that allows for memory corruption.

Affected

• cpe microsoft/windows 10 1507version unspecified
• cpe microsoft/windows 10 1607version unspecified
• cpe microsoft/windows 10 1809version unspecified
• cpe microsoft/windows 10 1909version unspecified
• cpe microsoft/windows 10 2004version unspecified
• cpe microsoft/windows 10 20h2version unspecified
• cpe microsoft/windows 10 21h1version unspecified
• cpe microsoft/windows 7version unspecified
• vendor Microsoft Windowsversion unspecified

Sources

• CISA KEVConfirmed exploitationCVE-2021-34448

  Microsoft Windows Scripting Engine contains an unspecified vulnerability that allows for memory corruption.

  cisa.gov
• CVE.orgVulnerability recordCVE-2021-34448

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2021-34448

  30-day exploitation probability 40.1%

  first.org
• NIST NVDVulnerability recordCVE-2021-34448

  Scripting Engine Memory Corruption Vulnerability

  nvd.nist.gov

References

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