Quick answers
- Is CVE-2026-69300 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-69300 being exploited in the wild.
- How severe is CVE-2026-69300?
- High severity, with a CVSS score of 7, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Push Notifications.
- Is there a fix for CVE-2026-69300?
- 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-2026-69300 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-69300?
- Check whether you run Microsoft Windows Push Notifications. 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 use-after-free vulnerability exists in the Windows Push Notifications service. An authenticated local attacker can trigger the vulnerability through a malicious action, causing the service to reference memory that has already been freed. This memory corruption flaw can be leveraged to achieve arbitrary code execution with elevated privileges on the affected system. The vulnerability requires local access and prior authentication to exploit.
Affected products
- Microsoft Windows Push Notifications
Timeline
- 2026-09-08: disclosed