Skip to main content
← All vulnerabilities
CVE-2021-34448

Scripting Engine Memory Corruption Vulnerability

Published
Last modified
published
Listed in CISA KEV
Fix
Fixed in 10.0.10240.19003, 10.0.14393.4530, 10.0.17763.2061, 10.0.18363.1679, 10.0.19041.1110, and 5 more
None on Exploit-DB, Metasploit or GitHub

Summary

This vulnerability affects the Scripting Engine component of affected Microsoft Windows software, which processes scripts such as JavaScript and VBScript. An attacker could exploit the memory corruption flaw to run arbitrary code or crash the affected application.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Scripting Engine Memory Corruption Vulnerability

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Microsoft Windows 10 Version 1507

    From 10.0.10240.0 · fixed in 10.0.10240.19003

  • Microsoft Windows 10 Version 1607

    From 10.0.14393.0 · fixed in 10.0.14393.4530

  • Microsoft Windows 10 Version 1809

    From 10.0.17763.0 · fixed in 10.0.17763.2061

  • Microsoft Windows 10 Version 1809

    From 10.0.0 · fixed in 10.0.17763.2061

  • Microsoft Windows 10 Version 1909

    From 10.0.0 · fixed in 10.0.18363.1679

  • Microsoft Windows 10 Version 2004

    From 10.0.0 · fixed in 10.0.19041.1110

  • Microsoft Windows 10 Version 20H2

    From 10.0.0 · fixed in 10.0.19042.1110

  • Microsoft Windows 10 Version 21H1

    From 10.0.0 · fixed in 10.0.19043.1110

  • Microsoft Windows 7

    From 6.1.0 · fixed in 6.1.7601.25661

  • Microsoft Windows 7 Service Pack 1

    From 6.1.0 · fixed in 6.1.7601.25661

  • Microsoft Windows 8.1

    From 6.3.0 · fixed in 6.3.9600.20069

  • Microsoft Windows Server 2008 R2 Service Pack 1

    From 6.1.7601.0 · fixed in 6.1.7601.25661

  • Microsoft Windows Server 2012

    From 6.2.9200.0 · fixed in 6.2.9200.23409

  • Microsoft Windows Server 2012 R2

    From 6.3.9600.0 · fixed in 6.3.9600.20069

  • Microsoft Windows Server 2016

    From 10.0.14393.0 · fixed in 10.0.14393.4530

  • Microsoft Windows Server 2019

    From 10.0.17763.0 · fixed in 10.0.17763.2061

References 1

msrc.microsoft.com