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Findings

CVE-2026-23666

Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

Published Apr 14, 2026 · updated Jul 15, 2026 · microsoft .net framework

Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

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. Apr 14, 2026 · NIST NVD

    Detected

    Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

  2. Jul 15, 2026 · NIST NVD

    Updated

    Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

Affected

  • cpe microsoft/.net framework3.5
  • cpe microsoft/.net framework4.6.2
  • cpe microsoft/.net framework4.7.2
  • cpe microsoft/.net framework4.8
  • cpe microsoft/.net framework4.8.1

Sources

  • CVE.orgVulnerability recordCVE-2026-23666

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-23666

    Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

    nvd.nist.gov

References