CVE record · CVE-2026-122987

Microsoft High Performance Computing (HPC) Pack Elevation of Privilege Vulnerability

CVSS 5.9 Medium

Published by the CVE Program (CNA: microsoft) at 10 Nov 2026, 18:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Microsoft	Microsoft HPC Pack 2016	affected 1.0.0 to before publication custom
Microsoft	Microsoft HPC Pack 2019	affected 1.0.0 to before 6.3.8364 custom

Identifiers: CVE-2026-122987
CNA: microsoft
Weakness (CWE): CWE-306
Tags: Microsoft HPC Pack 2016
Microsoft HPC Pack 2019
Authentication bypass
Published: 10 Nov 2026
Updated: 11 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.9	Medium	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C	CNA (microsoft)

CISA KEV Not listed.
EPSS No score.

Timeline

10 Nov 2026, 18:22 UTC Confirmed by the CVE List
10 Nov 2026, 18:28 UTC First seen by agentprime
10 Nov 2026, 19:20 UTC Confirmed by NVD

Sources

References from the CNA

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-122987 vendor-advisorypatch

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.