Windows Shell Security Feature Bypass Vulnerability
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Microsoft | Microsoft Edge (Chromium-based) | affected |
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| Microsoft | Outlook.com | affected |
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| Microsoft | Windows 10 Version 1607 | affected |
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| Microsoft | Windows 10 Version 1809 | affected |
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| Microsoft | Windows 10 Version 21H2 | affected |
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| Microsoft | Windows 10 Version 22H2 | affected |
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| Microsoft | Windows 11 version 23H2 | affected |
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| Microsoft | Windows 11 Version 23H2 | affected |
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| Microsoft | Windows 11 Version 24H2 | affected |
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| Microsoft | Windows 11 Version 25H2 | affected |
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| Microsoft | Windows 11 version 26H1 | affected |
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| Microsoft | Windows 11 Version 26H2 | affected |
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| Microsoft | Windows Server 2012 R2 | affected |
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| Microsoft | Windows Server 2012 R2 (Server Core installation) | affected |
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| Microsoft | Windows Server 2016 | affected |
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| Microsoft | Windows Server 2016 (Server Core installation) | affected |
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| Microsoft | Windows Server 2019 | affected |
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| Microsoft | Windows Server 2019 (Server Core installation) | affected |
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| Microsoft | Windows Server 2022 | affected |
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| Microsoft | Windows Server 2025 | affected |
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| Microsoft | Windows Server 2025 (Server Core installation) | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Outlook.com |
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| Microsoft | Outlook Web |
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| Microsoft | Windows 10 1607 |
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| Microsoft | Windows 10 1809 |
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| Microsoft | Windows 10 21h2 |
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| Microsoft | Windows 10 22h2 |
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| Microsoft | Windows 11 23h2 |
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| Microsoft | Windows 11 23h2 |
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| Microsoft | Windows 11 24h2 |
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| Microsoft | Windows 11 25h2 |
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| Microsoft | Windows 11 26h1 |
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| Microsoft | Windows 11 26h2 |
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| Microsoft | Windows Server 2012 R2 |
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| Microsoft | Windows Server 2012 R2 (server Core Installation) |
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| Microsoft | Windows Server 2016 |
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| Microsoft | Windows Server 2016 (server Core Installation) |
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| Microsoft | Windows Server 2019 |
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| Microsoft | Windows Server 2019 (server Core Installation) |
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| Microsoft | Windows Server 2022 |
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| Microsoft | Windows Server 2025 |
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| Microsoft | Windows Server 2025 (server Core Installation) |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is in the KEV database since Oct. 13, 2026.
Exploit prediction score: 9.8% (9.813% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft edge Chromium
|
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| CPEs | cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Microsoft edge Chromium
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft windows Server 2012 R2
Microsoft windows Server 2012 R2 (server Core Installation) Microsoft windows Server 2016 (server Core Installation) Microsoft windows Server 2019 (server Core Installation) Microsoft windows Server 2025 (server Core Installation) |
|
| Vendors & Products |
Microsoft windows Server 2012 R2
Microsoft windows Server 2012 R2 (server Core Installation) Microsoft windows Server 2016 (server Core Installation) Microsoft windows Server 2019 (server Core Installation) Microsoft windows Server 2025 (server Core Installation) |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft outlook Web
|
|
| CPEs | cpe:2.3:a:microsoft:outlook_web:-:*:*:*:*:*:*:* | |
| Vendors & Products |
Microsoft outlook
|
Microsoft outlook Web
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft outlook
Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 26h2 Microsoft windows Server 2012 |
|
| CPEs | cpe:2.3:a:microsoft:outlook:*:*:*:*:-:windows:*:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:* |
|
| Vendors & Products |
Microsoft outlook
Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 26h2 Microsoft windows Server 2012 |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Windows Shell Security Feature Bypass Vulnerability | |
| First Time appeared |
Microsoft
Microsoft outlook.com Microsoft windows 10 1607 Microsoft windows 10 1809 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 Version 26h2 For Arm64-based Systems Microsoft windows Server 2012 R2 Microsoft windows Server 2016 Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 2025 |
|
| Weaknesses | CWE-77 | |
| CPEs | cpe:2.3:a:microsoft:outlook.com:*:*:*:*:*:*:*:* cpe:2.3:a:microsoft:windows_11_version_26h2_for_arm64-based_systems:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Microsoft
Microsoft outlook.com Microsoft windows 10 1607 Microsoft windows 10 1809 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 Version 26h2 For Arm64-based Systems Microsoft windows Server 2012 R2 Microsoft windows Server 2016 Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 2025 |
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| References |
| |
| Metrics |
cvssV3_1
|