Quick answers
- Is CVE-2026-42969 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-42969 being exploited in the wild.
- How severe is CVE-2026-42969?
- Medium severity, with a CVSS score of 5.5, published 9 June 2026.
- Which products and versions are affected?
- Microsoft Windows Push Notifications.
- Is there a fix for CVE-2026-42969?
- 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-2026-42969 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-42969?
- 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 vulnerability classified as CWE-908 (Use of Uninitialized Resource) exists within the Windows Push Notifications component. The flaw occurs when the system fails to properly initialize a resource before it is accessed, potentially leaving sensitive data from previous operations in memory. An attacker with local access and low-level privileges can exploit this to disclose information from the system's memory. The attack requires no user interaction and has a high impact on confidentiality, though it does not directly allow for data modification or service disruption. Microsoft has released security updates to address this issue.
Affected products
- Microsoft Windows Push Notifications
Timeline
- 2026-06-09: disclosed
- 2026-06-09: advisory