CVEvulnerability

CVE-2026-96951

8.8 HIGH Known exploited Published 2026-10-13 Modified 2026-10-29 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Windows Command Injection Vulnerability — Microsoft Windows

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

Added to KEV
2026-10-13
Remediation due
2026-10-16
Ransomware use
Unknown
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-96951 ; BOD 26-04: BOD 26-04: Prioritizing Security Updates Based on Risk | CISA ; Forensics Triage Requirements: BOD 26-04: Implementation Guidance for Prioritizing Security Updates Based on Risk | CISA ; https://nvd.nist.gov/vuln/detail/CVE-2026-96951
Status
Analyzed
Published
2026-10-13
Last modified
2026-10-29
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-77

Description

Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.

Affected configurations

• microsoft outlook web • microsoft windows 10 1607 (< 10.0.14393.9612) • microsoft windows 10 1809 (< 10.0.17763.9376) • microsoft windows 10 21h2 (< 10.0.19044.7807) • microsoft windows 10 22h2 (< 10.0.19045.7807) • microsoft windows 11 23h2 (< 10.0.22631.7652) • microsoft windows 11 24h2 (< 10.0.26100.9711) • microsoft windows 11 25h2 (< 10.0.26200.9711) • microsoft windows 11 26h1 (< 10.0.28000.3231) • microsoft windows 11 26h2 (< 10.0.26300.9711) • microsoft windows server 2012 r2 • microsoft windows server 2016 (< 10.0.14393.9612) • microsoft windows server 2019 (< 10.0.17763.9376) • microsoft windows server 2022 (< 10.0.20348.5761) • microsoft windows server 2025 (< 10.0.26100.33650)

Related

Weakness · CWE (1)

  • CWE-77 Improper Neutralization of Special Elements used in a Command weakness

References