# CVE-2026-112813: Microsoft Windows Overlay Filter race condition privilege escalation

Source: https://junglewise.ai/threats/cve-2026-112813-concurrent-execution-using-shared-resource-with-improper  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-112813 · Severity: medium · CVSS 4.7 · Published 2026-11-10

Windows Overlay Filter, a component used by Windows for managing file system operations, contains a race condition vulnerability that allows an authorized local user to elevate their privileges on the system. An attacker who has already gained user-level access could exploit this flaw to gain administrative control of the affected computer.

Technologies: [Microsoft Windows Overlay Filter](https://junglewise.ai/threats/technologies/windows-overlay-filter). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-112813 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-112813 being exploited in the wild.

**How severe is CVE-2026-112813?** Medium severity, with a CVSS score of 4.7, published 10 November 2026.

**Which products and versions are affected?** Microsoft Windows Overlay Filter <UNKNOWN>.

**Is there a fix for CVE-2026-112813?** 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-2026-112813 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-112813?** Check whether you run Microsoft Windows Overlay Filter 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

A race condition exists in the Windows Overlay Filter due to improper synchronization when multiple threads access shared resources. An authenticated local attacker can trigger the race condition to cause a privilege escalation from user to system level. The vulnerability requires local access and existing user privileges to exploit.

## Affected products

- Microsoft Windows Overlay Filter <UNKNOWN>

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112813](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112813)

## Related threats

- [Windows Overlay Filter race condition privilege escalation](https://junglewise.ai/threats/cve-2026-121670-concurrent-execution-using-shared-resource-with-improper)
- [Windows Overlay Filter integer overflow privilege escalation](https://junglewise.ai/threats/cve-2026-112760-integer-overflow-or-wraparound-in-windows-overlay-filter-allows)
- [Microsoft Windows Overlay Filter information disclosure](https://junglewise.ai/threats/cve-2026-108409-exposure-of-sensitive-system-information-to-an-unauthorized)
- [Windows Overlay Filter missing authorization](https://junglewise.ai/threats/cve-2026-96315-missing-authorization-in-windows-overlay-filter-allows-an)
- [Windows Overlay Filter race condition in shared resource synchronization](https://junglewise.ai/threats/cve-2026-83879-concurrent-execution-using-shared-resource-with-improper)