CVE-2026-59124

CRITICAL CVSS 3.1: 9.8 EPSS 1.68%
Updated Aug 16, 2026
Microsoft
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions 1.0.0 — 6.3.8359
Fixed In 2.0.1314.0
Type CWE-502 (Deserialization of Untrusted Data)
Vendor Microsoft
Public PoC No

Deserialization of untrusted data in Microsoft High Performance Computing (HPC) Pack allows an unauthorized attacker to execute code 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

Vulnerable Products 3

Configuration From (including) Up to (excluding)
Microsoft Windows_App_Client_For_Windows_Desktop
cpe:2.3:a:microsoft:windows_app_client_for_windows_desktop:*:*:*:*:*:windows:*:*
1.00 2.0.1314.0
Microsoft Windows_App
cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:windows:*:*
2.0.1314.0
Microsoft Microsoft_Hpc_Pack_2019
cpe:2.3:a:microsoft:microsoft_hpc_pack_2019:*:*:*:*:*:*:*:*
1.0.0 6.3.8359