SB20261111127 - Missing Authentication for Critical Function in Microsoft HPC Pack
Published: November 11, 2026
Security Bulletin ID
SB20261111127
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing Authentication for Critical Function (CVE-ID: CVE-2026-122987)
CWE-ID: CWE-306 - Missing Authentication for Critical Function
CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to disclose credentials.
The vulnerability exists due to missing authentication for a critical function in Microsoft High Performance Computing (HPC) Pack when handling network requests. A remote attacker can invoke the affected function without authentication to obtain credentials.
Remediation
Install update from vendor's website.