CVE-2026-83598

Description

Netdata is an open source observability tool. From rom 2.0.0 until 2.10.4, during Netdata Windows Agent MSI repair, powershell.exe runs as SYSTEM without -NoProfile and loads %USERPROFILE%\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1 from the low-privileged user who initiated repair. Commands placed in that profile before repair therefore execute with SYSTEM privileges. This vulnerability is fixed in 2.10.4.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: HIGH
CVSS score: 7.8 / 10
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Effective score: 7.8 / 10 HIGH source: CNA overview
CWE(s): CWE-269, CWE-427
Reserved: 2026-08-31
Published: 2026-09-22 17:04 UTC
Last updated: 2026-09-22 17:53 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/83xxx/CVE-2026-83598.json
Linked Threat: CVE-2026-83598 — Netdata: Local Privilege Escalation in Netdata Agent Windows installer via PowerShell Profile Hijack in MSI Repair

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 17:17:25 UTC
NVD last modified: 2026-09-22 18:17:22 UTC
NVD CVSS v3.1: 7.8 / 10 HIGH source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 5.9 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84565
Assigner: GitHub_M
Published: Sep 22, 2026, 5:04:21 PM
Updated: Sep 22, 2026, 5:53:38 PM
EUVD base score (CVSS 3.1): 7.8 / 10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.0000
Vendors: netdata
Products: netdata (2.0.0, < 2.10.4)

ENISA description: Netdata is an open source observability tool. From rom 2.0.0 until 2.10.4, during Netdata Windows Agent MSI repair, powershell.exe runs as SYSTEM without -NoProfile and loads %USERPROFILE%\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1 from the low-privileged user who initiated repair. Commands placed in that profile before repair therefore execute with SYSTEM privileges. This vulnerability is fixed in 2.10.4.

EUVD references (4)

Affected products (1)

Vendor	Product	Versions	Platforms
netdata	netdata	`>= 2.0.0, < 2.10.4` (affected)	—

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

https://github.com/netdata/netdata/security/advisories/GHSA-8hxv-2mg6-ggw5 x_refsource_CONFIRM
https://github.com/netdata/netdata/pull/22751 x_refsource_MISC
https://github.com/netdata/netdata/commit/d762782697623a98b51b4e41f7fe2d12404f0662 x_refsource_MISC
https://github.com/netdata/netdata/releases/tag/v2.10.4 x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/netdata/netdata/commit/d762782697623a98b51b4e41f7fe2d12404f0662 security-advisories@github.com
https://github.com/netdata/netdata/pull/22751 security-advisories@github.com
https://github.com/netdata/netdata/releases/tag/v2.10.4 security-advisories@github.com
https://github.com/netdata/netdata/security/advisories/GHSA-8hxv-2mg6-ggw5 security-advisories@github.com
https://github.com/netdata/netdata/security/advisories/GHSA-8hxv-2mg6-ggw5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

August 2026 cumulative update - .NET Framework | Microsoft Learn

web:learn.microsoft.com

This update installs the complete .NET Framework 3.5 product for Windows 11, version 26H1 (build version 28000) and newer. Unlike traditional cumulative updates that patch individual components, this update delivers the full .NET Framework 3.5 product as a standalone installer. It replaces any previously installed version.

2026-09-23 15:14 UTC
Security Update Guide - Microsoft

web:msrc-ppe.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-23 15:14 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-09-23 15:14 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-23 15:14 UTC
Description of the security update for Office 2016: August 11, 2026 ...

web:support.microsoft.com

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...

2026-09-23 15:14 UTC
Critical Patches Issued for Microsoft Products, August 11, 2026

web:www.cisecurity.org

<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

2026-09-23 15:14 UTC
August's Patch Tuesday is a monster: 751 fixes, with an exploited ...

web:www.computerworld.com

August's Patch Tuesday is a big one: 751 fixes, an exploited WinSock flaw and plenty of critical Windows, Office and Exchange issues.

2026-09-23 15:14 UTC
CVE-2026-83598: netdata: Netdata is an open source ... - Rapid7

web:www.rapid7.com

CVE-2026-83598 : netdata: Netdata is an open source observability tool. View severity, references, and remediation details from Rapid7.

2026-09-23 15:14 UTC
CVE-2026-83598 | Tenable®

web:www.tenable.com

Netdata is an open source observability tool. From rom 2.0.0 until 2.10.4, during Netdata Windows Agent MSI repair, powershell.exe runs as SYSTEM without -NoProfile ...

2026-09-23 15:14 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-23 15:14 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-83598.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
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              "content": {
                "id": "CVE-2026-83598",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T17:50:58.654122Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
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        "references": [
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            "url": "https://github.com/netdata/netdata/security/advisories/GHSA-8hxv-2mg6-ggw5"
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        "title": "CISA ADP Vulnrichment"
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        }
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