Risk Letters

Exploited vulnerability

CVE-2026-96951

TLP:CLEAR

Microsoft Windows Command Injection Vulnerability

Microsoft Windows Shell contains a command injection vulnerability that allows an unauthorized attacker to bypass a security feature over a network.

Facts

  • Vendor: Microsoft
  • Product: Windows
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 9.8 %
  • On CISA's Known Exploited Vulnerabilities list since: 13 October 2026
  • First known exploitation: 25 September 2026
  • CISA's deadline for US federal agencies: 16 October 2026
  • Weakness: CWE-77
  • First seen by Risk Letters: 13 October 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD