CVE-2026-83598

Netdata: Local Privilege Escalation in Netdata Agent Windows installer via PowerShell Profile Hijack in MSI Repair

7.8 High

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.16%Unchanged since Sep 23, 2026

What each source reports

CVE List Score used 7.8

Netdata: Local Privilege Escalation in Netdata Agent Windows installer via PowerShell Profile Hijack in MSI Repair

Record: CVE-2026-83598
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-269, CWE-427
Updated: 2026-11-02

EUVDEUVD-2026-84565 7.8

Record: EUVD-2026-84565
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

NVD 7.8

Record: CVE-2026-83598
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-269, CWE-427
Updated: 2026-11-02

OSV 7.8

Netdata: Local Privilege Escalation in Netdata Agent Windows installer via PowerShell Profile Hijack in MSI Repair

Record: CVE-2026-83598
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-269, CWE-427
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-83598 7.8

Record: DEBIAN-CVE-2026-83598
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-83598 7.8

Record: UBUNTU-CVE-2026-83598
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

netdata

Affected packages

Affected packages
Package	Affected	Fixed
`netdata` Debian:12	All versions, plus listed versions 1.37.1-21.38.0-11.38.1-11.39.0-11.39.1-1 Show 26 moreShow less 1.39.1-21.40.0-11.40.0-21.40.1-11.41.0-11.42.0-11.42.1-11.42.2-11.42.3-11.42.4-11.43.0-11.43.1-11.43.2-11.44.3-11.44.3-21.46.3-11.46.3-21.47.0-11.47.1-11.47.2-11.47.5-12.0.3+dfsg-12.0.3+dfsg-22.0.3+dfsg-32.0.3+dfsg-42.0.3+dfsg-5	None known
`netdata` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 1.7.0+dfsg-11.8.0+dfsg-11.9.0+dfsg-11.9.0+dfsg-1ubuntu0.1~esm1	None known
`netdata` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 1.16.1-21.19.0-3ubuntu11.19.0-3ubuntu1+esm1	None known
`netdata` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 1.29.3-41.31.0-41.33.1-1ubuntu11.33.1-1ubuntu1+esm1	None known
`netdata` Ubuntu:24.04:LTS	All versions, plus listed versions 1.42.1-11.43.1-11.43.2-11.43.2-1build11.43.2-1build2	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-83598 is a high vulnerability (CVSS 7.8) in Netdata, published September 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 4th percentile. No source names a fixed version.