Quick answers
- Is CVE-2026-85862 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-85862 being exploited in the wild.
- How severe is CVE-2026-85862?
- High severity, with a CVSS score of 7, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Error Reporting.
- Is there a fix for CVE-2026-85862?
- 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-2026-85862 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-85862?
- 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
A double free vulnerability in Windows Error Reporting allows an attacker with local user privileges to trigger a memory corruption condition by freeing the same heap memory block twice. This memory safety issue can be leveraged to execute arbitrary code in the Windows Error Reporting service context, leading to local privilege escalation to SYSTEM or higher.
Affected products
- Microsoft Windows Error Reporting
Timeline
- 2026-11-10: disclosed