Vulnerability · Published Aug 11, 2026 · Assigned by microsoft
CVE-2026-59124Microsoft High Performance Computing (HPC) Pack Remote Code Execution Vulnerability
Critical 9.8
In plain English
A critical-severity unsafe deserialization in Microsoft HPC Pack 2019 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.5%top 25.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Deserialization of untrusted data in Microsoft High Performance Computing (HPC) Pack allows an unauthorized attacker to execute code over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft HPC Pack 2019 | 1.0.0 – before 6.3.8359 |
Weakness: CWE-502 · 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
References
- Microsoft High Performance Computing (HPC) Pack Remote Code Execution Vulnerability vendor-advisory, patch