# CVE-2026-83669: Windows Error Reporting privilege escalation

Source: https://junglewise.ai/threats/cve-2026-83669-use-of-uninitialized-resource-in-windows-error-reporting-allows  
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-2026-83669 · Severity: high · CVSS 7.8 · Published 2026-10-13

Windows Error Reporting, a system component that collects crash and error information, contains a flaw allowing an authenticated attacker to gain elevated privileges on a local machine. This could enable an attacker with user-level access to escalate to administrative control, potentially compromising system security and enabling further attacks.

Technologies: [Microsoft Windows Error Reporting](https://junglewise.ai/threats/technologies/windows-error-reporting). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-83669 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83669 being exploited in the wild.

**How severe is CVE-2026-83669?** High severity, with a CVSS score of 7.8, published 13 October 2026.

**Which products and versions are affected?** Microsoft Windows Error Reporting.

**Is there a fix for CVE-2026-83669?** 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-2026-83669 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-83669?** Check whether you run Microsoft Windows Error Reporting. 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 involves use of an uninitialized resource in Windows Error Reporting that permits local privilege escalation. An authenticated attacker can exploit this flaw to elevate their privileges on the affected system. The attack requires local access and prior authentication to the system.

## Affected products

- Microsoft Windows Error Reporting

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83669](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83669)

## Related threats

- [Windows Error Reporting privilege escalation in file handling](https://junglewise.ai/threats/cve-2026-94525-an-elevation-of-privilege-vulnerability-exists-in-windows-error)
- [Windows Error Reporting double free privilege escalation](https://junglewise.ai/threats/cve-2026-85862-double-free-in-windows-error-reporting-allows-an-authorized)
- [Windows Error Reporting use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-85354-use-after-free-in-windows-error-reporting-allows-an-authorized)
- [Windows Error Reporting weak authentication privilege escalation](https://junglewise.ai/threats/cve-2026-83840-weak-authentication-in-windows-error-reporting-allows-an)
- [Microsoft Windows Error Reporting out-of-bounds read](https://junglewise.ai/threats/cve-2026-83747-out-of-bounds-read-in-windows-error-reporting-allows-an)