CVE-2026-73025

CRITICAL CVSS 3.1: 9.8 EPSS 0.90%
Updated Sep 25, 2026
Microsoft
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions before 10.0.26100.33438
Fixed In 10.0.14393.9512
Type CWE-1390
Vendor Microsoft
Public PoC No

Weak authentication in Windows iSCSI allows an unauthorized attacker to bypass a security feature over a network.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 10

Configuration From (including) Up to (excluding)
Microsoft Windows_10_1607
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
— 10.0.14393.9512
Microsoft Windows_10_1607
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
— 10.0.14393.9512
Microsoft Windows_10_1809
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
— 10.0.17763.9245
Microsoft Windows_10_1809
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
— 10.0.17763.9245
Microsoft Windows_Server_2012
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
— —
Microsoft Windows_Server_2012
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
— —
Microsoft Windows_Server_2016
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
— 10.0.14393.9512
Microsoft Windows_Server_2019
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
— 10.0.17763.9245
Microsoft Windows_Server_2022
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
— 10.0.20348.5622
Microsoft Windows_Server_2025
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
— 10.0.26100.33438