# CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability CVE-2026-96951 is fixed in 34 products on 3 platforms, first by Microsoft Edge Dev 155.0.4273.0, released September 11, 2026. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on October 13, 2026. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/cve/CVE-2026-96951 - Priority: Patch now - CVSS: 8.8 (Important) - EPSS: 0.0981 - CISA KEV: listed Oct 13, 2026, federal due date Oct 16, 2026 - Exploited (vendor report): yes - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Detected - Published: Oct 13, 2026 - Weakness: Improper Neutralization of Special Elements used in a Command ('Command Injection') - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/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.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.9612 | [KB5126868](https://patchblox.com/security/data/fix/microsoft/kb5126868.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.9612 | [KB5126868](https://patchblox.com/security/data/fix/microsoft/kb5126868.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.9376 | [KB5126651](https://patchblox.com/security/data/fix/microsoft/kb5126651.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.9376 | [KB5126651](https://patchblox.com/security/data/fix/microsoft/kb5126651.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 21H2 for 32-bit Systems | | [KB5126657](https://patchblox.com/security/data/fix/microsoft/kb5126657.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 21H2 for ARM64-based Systems | | [KB5126657](https://patchblox.com/security/data/fix/microsoft/kb5126657.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 21H2 for x64-based Systems | | [KB5126657](https://patchblox.com/security/data/fix/microsoft/kb5126657.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 22H2 for 32-bit Systems | | [KB5126657](https://patchblox.com/security/data/fix/microsoft/kb5126657.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 22H2 for ARM64-based Systems | | [KB5126657](https://patchblox.com/security/data/fix/microsoft/kb5126657.md) | Oct 13, 2026 | | Microsoft | Windows 10 Version 22H2 for x64-based Systems | | [KB5126657](https://patchblox.com/security/data/fix/microsoft/kb5126657.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 23H2 for ARM64-based Systems | 22631.7652 | [KB5126653](https://patchblox.com/security/data/fix/microsoft/kb5126653.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 23H2 for x64-based Systems | 22631.7652 | [KB5126653](https://patchblox.com/security/data/fix/microsoft/kb5126653.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 24H2 for ARM64-based Systems | | [KB5127648](https://patchblox.com/security/data/fix/microsoft/kb5127648.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 24H2 for x64-based Systems | | [KB5127648](https://patchblox.com/security/data/fix/microsoft/kb5127648.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 25H2 for ARM64-based Systems | | [KB5127648](https://patchblox.com/security/data/fix/microsoft/kb5127648.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 25H2 for x64-based Systems | | [KB5127648](https://patchblox.com/security/data/fix/microsoft/kb5127648.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 26H1 for ARM64-based Systems | 28000.3231 | [KB5127646](https://patchblox.com/security/data/fix/microsoft/kb5127646.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 26H2 for ARM64-based Systems | | [KB5127648](https://patchblox.com/security/data/fix/microsoft/kb5127648.md) | Oct 13, 2026 | | Microsoft | Windows 11 Version 26H2 for x64-based Systems | | [KB5127648](https://patchblox.com/security/data/fix/microsoft/kb5127648.md) | Oct 13, 2026 | | Microsoft | Windows 11 version 26H1 for x64-based Systems | 28000.3231 | [KB5127646](https://patchblox.com/security/data/fix/microsoft/kb5127646.md) | Oct 13, 2026 | | Microsoft | Windows Server 2012 R2 | | [KB5126836](https://patchblox.com/security/data/fix/microsoft/kb5126836.md) | Oct 13, 2026 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB5126836](https://patchblox.com/security/data/fix/microsoft/kb5126836.md) | Oct 13, 2026 | | Microsoft | Windows Server 2016 | 14393.9612 | [KB5126868](https://patchblox.com/security/data/fix/microsoft/kb5126868.md) | Oct 13, 2026 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.9612 | [KB5126868](https://patchblox.com/security/data/fix/microsoft/kb5126868.md) | Oct 13, 2026 | | Microsoft | Windows Server 2019 | 17763.9376 | [KB5126651](https://patchblox.com/security/data/fix/microsoft/kb5126651.md) | Oct 13, 2026 | | Microsoft | Windows Server 2019 (Server Core installation) | 17763.9376 | [KB5126651](https://patchblox.com/security/data/fix/microsoft/kb5126651.md) | Oct 13, 2026 | | Microsoft | Windows Server 2022 | 20348.5761 | [KB5126655](https://patchblox.com/security/data/fix/microsoft/kb5126655.md) | Oct 13, 2026 | | Microsoft | Windows Server 2022 (Server Core installation) | 20348.5761 | [KB5126655](https://patchblox.com/security/data/fix/microsoft/kb5126655.md) | Oct 13, 2026 | | Microsoft | Windows Server 2025 | 26100.33650 | [KB5126646](https://patchblox.com/security/data/fix/microsoft/kb5126646.md) | Oct 13, 2026 | | Microsoft | Windows Server 2025 (Server Core installation) | 26100.33650 | [KB5126646](https://patchblox.com/security/data/fix/microsoft/kb5126646.md) | Oct 13, 2026 | | Windows apps | Microsoft Edge | 154.0.4258.62 | [Microsoft Edge 154.0.4258.62](https://patchblox.com/security/data/fix/windows-app/microsoft.edge-154.0.4258.62.md) | Oct 5, 2026 | | Windows apps | Microsoft Edge Beta | 155.0.4283.33 | [Microsoft Edge Beta 155.0.4283.33](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.beta-155.0.4283.33.md) | Oct 2, 2026 | | Windows apps | Microsoft Edge Dev | 155.0.4273.0 | [Microsoft Edge Dev 155.0.4273.0](https://patchblox.com/security/data/fix/windows-app/microsoft.edge.dev-155.0.4273.0.md) | Sep 11, 2026 | | Windows apps | Microsoft Edge WebView2 Runtime | 154.0.4258.62 | [Microsoft Edge WebView2 Runtime 154.0.4258.62](https://patchblox.com/security/data/fix/windows-app/microsoft.edgewebview2runtime-154.0.4258.62.md) | Oct 5, 2026 | | macOS | Microsoft Edge | 154.0.4258.62 | [Microsoft Edge 154.0.4258.62](https://patchblox.com/security/data/fix/macos/com.microsoft.edgemac-154.0.4258.62.md) | Oct 4, 2026 | --- Data as of 2026-11-11T01:43:54Z UTC. 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