What is CVE-2026-83598?

CVE-2026-83598 is a high-severity vulnerability in Netdata, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2026-09-22.

How severe is CVE-2026-83598?

High severity. CVSS v3 base score is 7.8 out of 10.

Privilege escalation in Netdata

CVE-2026-83598

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.

Vulnerability class: Privilege Escalation

Published 2026-09-22 · last modified 2026-09-22.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Netdata — versions >= 2.0.0, < 2.10.4

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-83598?: CVE-2026-83598 is a high-severity vulnerability in Netdata, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2026-09-22.
How severe is CVE-2026-83598?: High severity. CVSS v3 base score is 7.8 out of 10.