CVE-2025-55232CWE-502

Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability

Critical · published September 9, 2025

CVSS v3.1
9.8
EPSS
2%
Percentile
81.9
In the wild
Unconfirmed
What it is

🔥 An attacker could execute malicious code across your network, simply by sending a cleverly crafted payload! Think of it like an unwelcome guest who can stroll into your house because they know how to bypass your security system — once inside, they can do anything from rearranging your furniture to taking your valuables! This deserialization flaw in Microsoft High Performance Compute Pack (HPC) is absolutely devastating. An unauthorized attacker could seize control of your systems, executing any code they want, leading to data breaches or service disruptions. The consequences could be catastrophic, affecting not just individual machines, but potentially your entire network.

Put simply

Think of it like an unwelcome guest who can stroll into your house because they know how to bypass your security system — once inside, they can do anything from rearranging your furniture to taking your valuables! The vulnerability stems from improper handling of untrusted data during the deserialization process, allowing attackers to inject and execute arbitrary code over the network without any authentication checks.

What to do

This deserialization flaw in Microsoft High Performance Compute Pack (HPC) is absolutely devastating. An unauthorized attacker could seize control of your systems, executing any code they want, leading to data breaches or service disruptions. The consequences could be catastrophic, affecting not just individual machines, but potentially your entire network. To guard against this vulnerability, urgently apply the latest security patch from Microsoft. Ensure you configure settings to restrict access, and perform regular audits of your HPC environments to identify potential exploit attempts. Staying vigilant is key! You've got this! By taking these steps, you can lock down your system and protect your network like a pro! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.02134 · 81.9th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2025-09-09T17:01Z
EPSS history
Timeline
  • 09 SEP 17:01Z
    Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability
    cvelistv5