CVE-2026-68819

HIGH CVSS 3.1: 7.5 EPSS 0.68%
Updated Aug 16, 2026
Microsoft
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions 10.0.14393.0 — 6.3.9600.23338
Fixed In 10.0.17763.9115
Type CWE-126
Vendor Microsoft
Public PoC No

Buffer over-read in Windows Network File System allows an unauthorized attacker to deny service 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
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 17

Configuration From (including) Up to (excluding)
Microsoft Windows_10_1809
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
10.0.17763.0 10.0.17763.9115
Microsoft Windows_Server_2019
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
10.0.17763.0 10.0.17763.9115
Microsoft Windows_Server_2019
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
10.0.17763.0 10.0.17763.9115
Microsoft Windows_Server_2022
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
10.0.20348.0 10.0.20348.5499
Microsoft Windows_Server_2025
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
10.0.26100.0 10.0.26100.33296
Microsoft Windows_Server_2025
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
10.0.26100.0 10.0.26100.33296
Microsoft Windows_10_1607
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
10.0.14393.0 10.0.14393.9418
Microsoft Windows_Server_2016
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
10.0.14393.0 10.0.14393.9418
Microsoft Windows_Server_2016
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
10.0.14393.0 10.0.14393.9418
Microsoft Windows_Server_2012
cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
6.2.9200.0 6.2.9200.26280
Microsoft Windows_Server_2012
cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
6.2.9200.0 6.2.9200.26280
Microsoft Windows_Server_2012_R2
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
6.3.9600.0 6.3.9600.23338
Microsoft Windows_Server_2012_R2
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
6.3.9600.0 6.3.9600.23338
Microsoft Windows_10_1607
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
10.0.14393.9418
Microsoft Windows_10_1809
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
10.0.17763.9115
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:*:*:*:*:*:*:*