Quick answers
- Is CVE-2026-42907 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-42907 being exploited in the wild.
- How severe is CVE-2026-42907?
- Medium severity, with a CVSS score of 6.5, published 9 June 2026.
- Which products and versions are affected?
- Microsoft Windows Shell.
- Is there a fix for CVE-2026-42907?
- 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-2026-42907 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-42907?
- Check whether you run Microsoft Windows Shell. 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
This vulnerability is classified as an Information Exposure (CWE-200) within the Microsoft Windows Shell component. An authenticated attacker with low privileges can exploit this flaw to disclose sensitive information locally. Although the CVSS vector indicates a network attack vector (AV:N), the vulnerability description specifies that the disclosure occurs locally. The root cause is a failure to properly restrict access to sensitive data within the Shell environment. Successful exploitation results in high confidentiality impact but does not affect system integrity or availability.
Affected products
- Microsoft Windows Shell
Timeline
- 2026-06-09: disclosed
- 2026-06-09: advisory