# CVE-2026-69462: Microsoft Windows Error Reporting heap-based buffer overflow

Source: https://junglewise.ai/threats/cve-2026-69462-microsoft-windows-error-reporting-heap-based-buffer-overflow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-69462 · Severity: high · CVSS 8 · Published 2026-09-08

Windows Error Reporting is a system component that collects and reports application crashes and system errors to Microsoft. A heap-based buffer overflow in this component could allow an authorized attacker to elevate their privileges to system level, potentially gaining complete control of the affected computer.

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-2026-69462 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69462 being exploited in the wild.

**How severe is CVE-2026-69462?** High severity, with a CVSS score of 8, published 8 September 2026.

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

**Is there a fix for CVE-2026-69462?** 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-2026-69462 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-69462?** Check whether you run Microsoft Windows Error Reporting 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 heap-based buffer overflow vulnerability exists in Windows Error Reporting that can be exploited by an authenticated attacker to escalate privileges. The vulnerability requires network access and prior authorization (authenticated attacker), allowing remote privilege elevation. An attacker can achieve arbitrary code execution with system-level privileges. Microsoft has issued security updates to address this vulnerability.

## Affected products

- Microsoft Windows Error Reporting <UNKNOWN>

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69462](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69462)

## 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)