# CVE-2026-100225: Windows Storage heap buffer overflow privilege escalation

Source: https://junglewise.ai/threats/cve-2026-100225-heap-based-buffer-overflow-in-windows-storage-allows-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-100225 · Severity: high · CVSS 7 · Published 2026-10-13

Windows Storage, a core component of the Windows operating system that manages file and data storage operations, contains a heap buffer overflow vulnerability. An attacker with local access and appropriate permissions could exploit this flaw to elevate their privileges on an affected system, potentially gaining full administrative control.

Technologies: [Microsoft Windows Storage](https://junglewise.ai/threats/technologies/windows-storage). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-100225 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-100225 being exploited in the wild.

**How severe is CVE-2026-100225?** High severity, with a CVSS score of 7, published 13 October 2026.

**Which products and versions are affected?** Microsoft Windows Storage.

**Is there a fix for CVE-2026-100225?** 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-2026-100225 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-100225?** Check whether you run Microsoft Windows Storage. 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

A heap buffer overflow exists in the Windows Storage component, reachable by an authenticated local attacker. The vulnerability allows memory corruption that can be leveraged to escalate privileges to a higher privilege level. Exploitation requires local access and authenticated credentials on the target system.

## Affected products

- Microsoft Windows Storage

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100225](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100225)

## Related threats

- [Windows Storage pointer dereference privilege elevation](https://junglewise.ai/threats/cve-2026-95889-untrusted-pointer-dereference-in-windows-storage-allows-an)
- [Windows Storage heap buffer overflow remote code execution](https://junglewise.ai/threats/cve-2026-105534-heap-based-buffer-overflow-in-windows-storage-allows-an)
- [Microsoft Windows Storage weak authentication privilege escalation](https://junglewise.ai/threats/cve-2026-105529-weak-authentication-in-windows-storage-allows-an-authorized)
- [Microsoft Windows Storage use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-69935-use-after-free-in-windows-storage-allows-an-authorized-attacker)
- [Windows Storage race condition privilege elevation](https://junglewise.ai/threats/cve-2026-69931-concurrent-execution-using-shared-resource-with-improper)