CVE-2026-33827

CVE Enrichment

CVSS: 8.1 HIGH
EPSS: 0.84%
EPSS Percentile: 57.76%
CISA KEV: Not listed

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 15-Apr-2026 01:17
Last Modified: 15-Oct-2026 06:17
EPSS Date: 2026-11-02
CWE: CWE-362

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:H /
                            PR:N /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CNA Products / Version Status

Microsoft · Windows 10 Version 1607 Source: CNA · [email protected]
Default status: unknown

10.0.14393.0 ≤ version < 10.0.14393.9060 — affected (custom)

Platforms: 32-bit Systems, x64-based Systems
Microsoft · Windows 10 Version 1809 Source: CNA · [email protected]
Default status: unknown

10.0.17763.0 ≤ version < 10.0.17763.8644 — affected (custom)

Platforms: 32-bit Systems, x64-based Systems
Microsoft · Windows 10 Version 21H2 Source: CNA · [email protected]
Default status: unknown

10.0.19044.0 ≤ version < 10.0.19044.7184 — affected (custom)

Platforms: 32-bit Systems, ARM64-based Systems, x64-based Systems
Microsoft · Windows 10 Version 22H2 Source: CNA · [email protected]
Default status: unknown

10.0.19045.0 ≤ version < 10.0.19045.7184 — affected (custom)

Platforms: 32-bit Systems, ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 Version 23H2 Source: CNA · [email protected]
Default status: unknown

10.0.22631.0 ≤ version < 10.0.22631.6936 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows 11 Version 24H2 Source: CNA · [email protected]
Default status: unknown

10.0.26100.0 ≤ version < 10.0.26100.8246 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 Version 25H2 Source: CNA · [email protected]
Default status: unknown

10.0.26200.0 ≤ version < 10.0.26200.8246 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 version 23H2 Source: CNA · [email protected]
Default status: unknown

10.0.22631.0 ≤ version < 10.0.22631.6936 — affected (custom)

Platforms: ARM64-based Systems
Microsoft · Windows 11 version 26H1 Source: CNA · [email protected]
Default status: unknown

10.0.28000.0 ≤ version < 10.0.28000.1836 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows Server 2012 (Server Core installation) Source: CNA · [email protected]
Default status: unknown

6.2.9200.0 ≤ version < 6.2.9200.26026 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2012 R2 (Server Core installation) Source: CNA · [email protected]
Default status: unknown

6.3.9600.0 ≤ version < 6.3.9600.23132 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2012 R2 Source: CNA · [email protected]
Default status: unknown

6.3.9600.0 ≤ version < 6.3.9600.23132 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2012 Source: CNA · [email protected]
Default status: unknown

6.2.9200.0 ≤ version < 6.2.9200.26026 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2016 (Server Core installation) Source: CNA · [email protected]
Default status: unknown

10.0.14393.0 ≤ version < 10.0.14393.9060 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2016 Source: CNA · [email protected]
Default status: unknown

10.0.14393.0 ≤ version < 10.0.14393.9060 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2019 (Server Core installation) Source: CNA · [email protected]
Default status: unknown

10.0.17763.0 ≤ version < 10.0.17763.8644 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2019 Source: CNA · [email protected]
Default status: unknown

10.0.17763.0 ≤ version < 10.0.17763.8644 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2022 Source: CNA · [email protected]
Default status: unknown

10.0.20348.0 ≤ version < 10.0.20348.5020 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation) Source: CNA · [email protected]
Default status: unknown

10.0.25398.0 ≤ version < 10.0.25398.2274 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2025 (Server Core installation) Source: CNA · [email protected]
Default status: unknown

10.0.26100.0 ≤ version < 10.0.26100.32690 — affected (custom)

Platforms: x64-based Systems
Microsoft · Windows Server 2025 Source: CNA · [email protected]
Default status: unknown

10.0.26100.0 ≤ version < 10.0.26100.32690 — affected (custom)

Platforms: x64-based Systems

Affected Products / Versions

microsoft / windows_10_1607 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.14393.9060
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
microsoft / windows_10_1607 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.14393.9060
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
microsoft / windows_10_1809 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.17763.8644
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft / windows_10_1809 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.17763.8644
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft / windows_10_21h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19044.7184
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_21h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19044.7184
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_21h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19044.7184
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
microsoft / windows_10_22h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19045.7184
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_22h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19045.7184
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_22h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19045.7184
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
microsoft / windows_11_23h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.22631.6936
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_23h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.22631.6936
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_24h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26100.8246
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_24h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26100.8246
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_25h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26200.8246
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_25h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26200.8246
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_26h1 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.28000.1836
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
microsoft / windows_11_26h1 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.28000.1836
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
microsoft / windows_server_2012 Source: NVD CPE · affected
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
microsoft / windows_server_2012 Source: NVD CPE · affected
Version / affected range: r2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
microsoft / windows_server_2016 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.14393.9060
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
microsoft / windows_server_2019 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.17763.8644
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft / windows_server_2022 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.20348.5020
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoft / windows_server_2022_23h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.25398.2274
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
microsoft / windows_server_2025 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26100.32690
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*

References

[email protected]

Last enrichment sync: 03-Nov-2026 21:25
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

The system has already helped uncover 16 flaws fixed in the latest Patch Tuesday release, including CVE-2026-33824 and CVE-2026-33827. Microsoft Says MDASH AI System Found 16 Windows Flaws Fixed in Patch Tuesday

CVE (1)

People (1)

Vendors (1)

Products (2)

Industries (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.