CVE-2026-83597: Netdata Windows Agent MSI privilege escalation via process hijacking

CVE-2026-83597 · Severity: high · CVSS 7 · Published 2026-09-22

Netdata is an open-source observability and monitoring tool that runs on Windows systems. When a low-privileged user triggers a repair of the Windows installer (MSI), the tool launches system processes with elevated privileges in a way that allows the user to intercept and hijack them to execute arbitrary commands with SYSTEM-level access. This provides a complete takeover of the affected Windows system.

Vendors: Netdata.

Quick answers

Is CVE-2026-83597 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-83597 being exploited in the wild.
How severe is CVE-2026-83597?
High severity, with a CVSS score of 7, published 22 September 2026.
Which products and versions are affected?
Netdata Windows Agent 2.0.0 through 2.10.3.
Is there a fix for CVE-2026-83597?
A patch was published on 2026-06-17: Fix merged in version 2.10.4 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-83597 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-83597?
Check whether you run Netdata Windows Agent at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in Netdata Windows Agent MSI repair logic (versions 2.0.0–2.10.3), which launches powershell.exe and wevtutil.exe as elevated interactive processes visible in the initiating user's desktop session. A local attacker can interact with or hijack these process windows to execute arbitrary commands with SYSTEM privileges, bypassing access controls. The fix was applied in version 2.10.4 by hardening the MSI custom actions.

Affected products

  • Netdata Windows Agent 2.0.0 through 2.10.3

Timeline

  • 2026-09-22: disclosed: CVE-2026-83597 published
  • 2026-06-17: patched: Fix merged in version 2.10.4

References

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