CVE-2026-96951 · Low · CISA KEV

CISA KEV: Windows Shell Command Injection Allows Network Security Bypass

Threat Engine Auto-Feed · data current as of 2026-10-13

CVE-2026-96951 is a Microsoft Windows Shell command injection vulnerability, listed in CISA KEV, that allows an unauthorized attacker to bypass security features over a network. While specific exploit details are not public, its presence in KEV indicates active exploitation in the wild, posing a risk to Windows environments.

  • CVSS:
  • EPSS percentile:
  • Exploitation pressure: 25/100 (Low)

Exploitation reality: listed in CISA KEV (exploited in the wild). Threat × Vulnerability from public signals — impact depends on your environment.

Weakness —

A command injection vulnerability occurs when an application constructs a system command using user-supplied input without proper validation. This allows an attacker to inject arbitrary commands into the system, which are then executed with the privileges of the vulnerable application.

Who's at risk

Exposure: unknown · Auth: unknown · unknown

Enterprise profiles most at risk

  • Organizations with Windows environments, especially those with network-accessible Windows machines.
  • Financial services and Technology sectors, given the documented targeting by financially motivated and state-sponsored threat actors.

Misconfigurations that escalate it

  • Lack of network segmentation that allows unauthorized network access to Windows systems.
  • Insufficient monitoring of network traffic and Windows system logs for anomalous command execution.

High-impact scenarios

  • An attacker could bypass security features, potentially gaining unauthorized access or elevating privileges within the network.
  • Successful exploitation could lead to data theft, system compromise, or further lateral movement within the compromised environment.

Likely adversaries

  • FIN7 — Financial services (Assessed)
  • LockBit affiliates — Financial services (Assessed)
  • APT38 (Lazarus) — Financial services (Assessed)
  • APT29 (Cozy Bear) — Technology (Assessed)
  • Scattered Spider — Technology (Assessed)

What to do (defensive)

Detect

  • Monitor network traffic for unusual connections to Windows systems.
  • Implement robust logging on Windows machines to detect anomalous command execution or shell activity.
  • Utilize Endpoint Detection and Response (EDR) solutions to identify suspicious process creation or security feature bypass attempts.

Contain

  • Isolate affected Windows systems from the network to prevent further compromise.
  • Review network access controls to limit unauthorized network connectivity to Windows machines.

Patch

  • Apply the latest security updates from Microsoft for Windows to address CVE-2026-96951 as soon as they become available.

Frontier verdict — Low

High priority due to active exploitation in the wild (CISA KEV) and potential for network security bypass in Windows environments.

For detection-engineering and awareness only · point-in-time · not security advice · sourced from NVD, FIRST EPSS, CISA KEV. Adversary mappings are assessments unless cited.