CVE-2026-26128

CVE Enrichment

CVSS: 7.8 HIGH
EPSS: 0.69%
EPSS Percentile: 52.96%
CISA KEV: Not listed

Description

Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 11-Mar-2026 01:18
Last Modified: 17-Jun-2026 17:25
EPSS Date: 2026-11-08
CWE: CWE-287

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:L /
                            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 < 10.0.14393.8957 — 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 < 10.0.17763.8511 — 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 < 10.0.19044.7058 — 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 < 10.0.19045.7058 — 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 < 10.0.22631.6783 — affected (custom)

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

10.0.26100.0 ≤ version < 10.0.26100.8037 — 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 < 10.0.26200.8037 — affected (custom)

Platforms: ARM64-based Systems, x64-based Systems
Microsoft · Windows 11 version 22H3 Source: CNA · [email protected]
Default status: unknown

10.0.22631.0 ≤ version < 10.0.22631.6783 — affected (custom)

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

10.0.28000.0 ≤ version < 10.0.28000.1719 — 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 < 6.2.9200.25973 — 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 < 6.3.9600.23074 — affected (custom)

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

6.3.9600.0 ≤ version < 6.3.9600.23074 — affected (custom)

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

6.2.9200.0 ≤ version < 6.2.9200.25973 — 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 < 10.0.14393.8957 — affected (custom)

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

10.0.14393.0 ≤ version < 10.0.14393.8957 — 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 < 10.0.17763.8511 — affected (custom)

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

10.0.17763.0 ≤ version < 10.0.17763.8511 — affected (custom)

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

10.0.20348.0 ≤ version < 10.0.20348.4893 — 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 < 10.0.25398.2207 — 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 < 10.0.26100.32522 — affected (custom)

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

10.0.26100.0 ≤ version < 10.0.26100.32522 — affected (custom)

Platforms: x64-based Systems

Affected Products / Versions

microsoft / windows_10_1607 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.14393.8957
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
microsoft / windows_10_1607 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.14393.8957
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
microsoft / windows_10_1809 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.17763.8511
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft / windows_10_1809 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.17763.8511
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft / windows_10_21h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19044.7058
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_21h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19044.7058
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_21h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19044.7058
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
microsoft / windows_10_22h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19045.7058
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_22h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19045.7058
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_22h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.19045.7058
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
microsoft / windows_11_23h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.22631.6783
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_23h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.22631.6783
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_24h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26100.7979
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_24h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26100.7979
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_25h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26200.7979
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_25h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26200.7979
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_26h1 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.28000.1719
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
microsoft / windows_11_26h1 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.28000.1719
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) 10.0.14393.8957
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
microsoft / windows_server_2019 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.17763.8511
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft / windows_server_2022 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.20348.4830
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoft / windows_server_2022_23h2 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.25398.2207
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
microsoft / windows_server_2025 Source: NVD CPE · affected
Version / affected range: * · before (exclusive) 10.0.26100.32463
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

References

Last enrichment sync: 09-Nov-2026 14:55
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

One such flaw, CVE-2026-26128, affects Windows SMB Server and allows attackers to gain SYSTEM privileges if successfully exploited. Microsoft’s March 2026 Patch Tuesday Fixes 79 Vulnerabilities, Including Two Disclosed Zero-Days

CVE (5)

People (1)

Vendors (1)

Products (8)

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.