Microsoft PowerShell 7.6.x < 7.6.10 Multiple Vulnerabilities (November 2026)

medium Nessus Plugin ID 380352

Synopsis

The Microsoft PowerShell install on the remote host is affected by multiple vulnerabilities.

Description

The version of Microsoft PowerShell installed on the remote host is 7.6.x prior to 7.6.10. It is, therefore, affected by multiple vulnerabilities:

- Insufficiently protected credentials in Microsoft PowerShell Core allows an unauthorized attacker to disclose information over a network. (CVE-2026-121669)

- Insertion of sensitive information into sent data in Microsoft PowerShell Core allows an unauthorized attacker to disclose information over a network. (CVE-2026-121674)

- Improper restriction of xml external entity reference in Microsoft PowerShell allows an unauthorized attacker to disclose information over a network. (CVE-2026-121675, CVE-2026-122985)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Microsoft PowerShell version 7.6.10, 7.7.0, or later.

Plugin Details

Severity: Medium

ID: 380352

File Name: smb_nt_ms26_nov_powershell.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 11/13/2026

Updated: 11/13/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 50.44

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-121669

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Vulnerability Information

CPE: cpe:/a:microsoft:powershell

Required KB Items: SMB/Registry/Enumerated, WMI/Windows App Store/Enumerated, installed_sw/Microsoft.PowerShell

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 11/10/2026

Reference Information

CVE: CVE-2026-121669, CVE-2026-121674, CVE-2026-121675, CVE-2026-122985

IAVA: 2026-A-1271

Detections

Analytics