Microsoft Internet Explorer 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. Mar 11, 2021 · Catalog

   Detected

   Microsoft Internet Explorer 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. Oct 1, 2026 · Catalog

   Updated

   Microsoft Internet Explorer contains an unspecified vulnerability that allows for memory corruption.

Affected

• cpe microsoft/edgeversion unspecified
• cpe microsoft/internet explorer11
• cpe microsoft/internet explorer9
• vendor Microsoft Internet Explorerversion unspecified

Sources

• CISA KEVConfirmed exploitationCVE-2021-26411

  Microsoft Internet Explorer contains an unspecified vulnerability that allows for memory corruption.

  cisa.gov
• CVE.orgVulnerability recordCVE-2021-26411

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2021-26411

  30-day exploitation probability 80.8%

  first.org
• NIST NVDVulnerability recordCVE-2021-26411

  Internet Explorer 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