CVE-2026-100205: Microsoft SysInternals pointer dereference privilege escalation

CVE-2026-100205 · Severity: high · CVSS 7.1 · Published 2026-10-13

SysInternals is a suite of system administration and troubleshooting utilities for Windows. An authenticated local attacker can exploit an untrusted pointer dereference vulnerability to elevate their privileges on an affected system, potentially gaining complete control.

Technologies: Microsoft SysInternals. Vendors: Microsoft.

Quick answers

Is CVE-2026-100205 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-100205 being exploited in the wild.
How severe is CVE-2026-100205?
High severity, with a CVSS score of 7.1, published 13 October 2026.
Which products and versions are affected?
Microsoft SysInternals.
Is there a fix for CVE-2026-100205?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-100205 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-100205?
Check whether you run Microsoft SysInternals. 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

An untrusted pointer dereference flaw in SysInternals allows an authorized local attacker to achieve privilege escalation. The vulnerability requires local access and prior authentication/authorization. Successful exploitation grants the attacker elevated system privileges.

Affected products

  • Microsoft SysInternals

Timeline

  • 2026-10-13: disclosed

References

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