Quick answers
- Is CVE-2026-45658 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-45658 being exploited in the wild.
- How severe is CVE-2026-45658?
- High severity, with a CVSS score of 7.8, published 9 June 2026.
- Which products and versions are affected?
- Microsoft Windows BitLocker.
- Is there a fix for CVE-2026-45658?
- 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-2026-45658 attacked?
- It is attacked with local access or with physical access, in an operating system.
- Am I affected by CVE-2026-45658?
- Check whether you run Microsoft BitLocker. 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 protection mechanism failure (CWE-284) exists in Windows BitLocker's implementation of drive encryption. The vulnerability allows an attacker with physical access to the target hardware to bypass the encryption security features. According to the CVSS metrics, the attack requires low privileges and no user interaction, but is categorized under a local/physical attack vector. Successful exploitation could result in a complete loss of confidentiality, integrity, and availability of the data stored on the encrypted volume. Microsoft has released information regarding this vulnerability via their Security Update Guide.
Affected products
- Microsoft Windows BitLocker
Timeline
- 2026-06-09: advisory: Initial disclosure by Microsoft and NVD