#VU103801 Missing Authentication for Critical Function in Microsoft HPC Pack - CVE-2025-21198

Vulnerability identifier: #VU103801

Vulnerability risk: Medium

CVSSv4.0: 2.5 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:U/U:Green]

CVE-ID: CVE-2025-21198

CWE-ID: CWE-306

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Microsoft HPC Pack
Other software / Other software solutions

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to missing authentication for critical function in Microsoft High Performance Compute (HPC) Pack. A remote user on the local network can execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft HPC Pack: 2016 - 2019

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21198

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.