CVE-2026-25177

CVE Enrichment

CVSS: 8.8 HIGH
EPSS: 1.31%
EPSS Percentile: 69.75%
CISA KEV: Not listed

Description

Improper restriction of names for files and other resources in Active Directory Domain Services allows an authorized attacker to elevate privileges over a network.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: secure@microsoft.com
Published: 11-Mar-2026 01:18
Last Modified: 17-Jun-2026 17:24
EPSS Date: 2026-10-12
CWE: CWE-641

CVSS Vector


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

Affected Products / Versions

microsoft / windows_10_1607
Version / affected range: * · before (exclusive) 10.0.14393.8957
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
microsoft / windows_10_1607
Version / affected range: * · before (exclusive) 10.0.14393.8957
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
microsoft / windows_10_1809
Version / affected range: * · before (exclusive) 10.0.17763.8511
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft / windows_10_1809
Version / affected range: * · before (exclusive) 10.0.17763.8511
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7058
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7058
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7058
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7058
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7058
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7058
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
microsoft / windows_11_23h2
Version / affected range: * · before (exclusive) 10.0.22631.6783
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_23h2
Version / affected range: * · before (exclusive) 10.0.22631.6783
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_24h2
Version / affected range: * · before (exclusive) 10.0.26100.7979
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_24h2
Version / affected range: * · before (exclusive) 10.0.26100.7979
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_25h2
Version / affected range: * · before (exclusive) 10.0.26200.7979
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_25h2
Version / affected range: * · before (exclusive) 10.0.26200.7979
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_26h1
Version / affected range: * · before (exclusive) 10.0.28000.1719
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
microsoft / windows_11_26h1
Version / affected range: * · before (exclusive) 10.0.28000.1719
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
microsoft / windows_server_2012
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
microsoft / windows_server_2012
Version / affected range: r2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
microsoft / windows_server_2016
Version / affected range: * · before (exclusive) 10.0.14393.8957
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
microsoft / windows_server_2019
Version / affected range: * · before (exclusive) 10.0.17763.8511
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft / windows_server_2022
Version / affected range: * · before (exclusive) 10.0.20348.4830
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoft / windows_server_2022_23h2
Version / affected range: * · before (exclusive) 10.0.25398.2207
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
microsoft / windows_server_2025
Version / affected range: * · before (exclusive) 10.0.26100.32463
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

References

secure@microsoft.com

Last enrichment sync: 12-Oct-2026 23:48
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

Microsoft patched them, Shai Laron presented both flaws at Black Hat USA and DEF CON 34. KerberLoss (CVE-2026-25177) uses LDAP-unfilterable Unicode to bypass forest-wide SPN uniqueness, enabling SPN-jacking, DoS, or Black Hat and DEF CON Roundup: Hugging Face Compromise, North Korean Operations and Security Funding

CVE (2)

Malware (1)

People (5)

Vendors (23)

Products (34)

Tools (4)

Industries (3)

Countries (3)

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.