CVE-2026-69513: Microsoft Windows Error Reporting heap buffer overflow privilege escalation

CVE-2026-69513 · Severity: high · CVSS 7.8 · Published 2026-09-08

Windows Error Reporting is a system component that captures and reports application failures to Microsoft. A heap-based buffer overflow in this component allows an authorized local attacker to execute arbitrary code with elevated privileges, potentially compromising the entire system.

Technologies: Microsoft Windows Error Reporting. Vendors: Microsoft.

Quick answers

Is CVE-2026-69513 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-69513 being exploited in the wild.
How severe is CVE-2026-69513?
High severity, with a CVSS score of 7.8, published 8 September 2026.
Which products and versions are affected?
Microsoft Windows Error Reporting <UNKNOWN>.
Is there a fix for CVE-2026-69513?
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-2026-69513 attacked?
It is attacked with local access.
Am I affected by CVE-2026-69513?
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, a core Windows system component responsible for collecting and transmitting crash diagnostic data. The flaw allows an authenticated local attacker to overflow a heap buffer, achieving code execution with elevated privileges. Exploitation requires local access and prior authorization on the system. A successful exploit enables privilege escalation from the attacker's current privilege level to a higher level, potentially SYSTEM. Patches are expected to be available from Microsoft.

Affected products

  • Microsoft Windows Error Reporting <UNKNOWN>

Timeline

  • 2026-09-08: disclosed

References

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