CVE-2026-96951
Windows Shell Security Feature Bypass Vulnerability
Microsoft Windows Command Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
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.
CISA 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
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.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:CExploitation Context
as of October 14, 2026- CISA added CVE-2026-96951 to the KEV catalog on the day its CVE record was published. The median for entries added in 2026 so far is 15 days.
- It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 40 added in 2026.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Microsoft Outlook.com | 1.0.0 to <20260925.100 |
| Microsoft | Microsoft Windows 10 Version 1607 | 10.0.14393.0 to <10.0.14393.9612 |
| Microsoft | Microsoft Windows 10 Version 1809 | 10.0.17763.0 to <10.0.17763.9376 |
| Microsoft | Microsoft Windows 10 Version 21H2 | 10.0.19044.0 to <10.0.19044.7807 |
| Microsoft | Microsoft Windows 10 Version 22H2 | 10.0.19045.0 to <10.0.19044.7807 |
| Microsoft | Microsoft Windows 11 version 23H2 | 10.0.22631.0 to <10.0.22631.7652 |
| Microsoft | Microsoft Windows 11 Version 23H2 | 10.0.22631.0 to <10.0.22631.7652 |
| Microsoft | Microsoft Windows 11 Version 24H2 | 10.0.26100.0 to <10.0.26100.9711 |
| Microsoft | Microsoft Windows 11 Version 25H2 | 10.0.26200.0 to <10.0.26200.9711 |
| Microsoft | Microsoft Windows 11 version 26H1 | 10.0.28000.0 to <10.0.28000.3231 |
| Microsoft | Microsoft Windows 11 Version 26H2 | 10.0.26300.0 to <10.0.26300.9711 |
| Microsoft | Microsoft Windows Server 2012 R2 | 6.3.9600.0 to <6.3.9600.23470 |
| Microsoft | Microsoft Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 to <6.3.9600.23470 |
| Microsoft | Microsoft Windows Server 2016 | 10.0.14393.0 to <10.0.14393.9612 |
| Microsoft | Microsoft Windows Server 2016 (Server Core installation) | 10.0.14393.0 to <10.0.14393.9612 |
| Microsoft | Microsoft Windows Server 2019 | 10.0.17763.0 to <10.0.17763.9376 |
| Microsoft | Microsoft Windows Server 2019 (Server Core installation) | 10.0.17763.0 to <10.0.17763.9376 |
| Microsoft | Microsoft Windows Server 2022 | 10.0.20348.0 to <10.0.20348.5761 |
| Microsoft | Microsoft Windows Server 2025 | 10.0.26100.0 to <10.0.26100.33650 |
| Microsoft | Microsoft Windows Server 2025 (Server Core installation) | 10.0.26100.0 to <10.0.26100.33650 |
References
1 LinksRecord Details
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Related
Tool categories
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.