CVE-2026-83500: Windows BitLocker open redirect allows security feature bypass

CVE-2026-83500 · Severity: medium · CVSS 6.1 · Published 2026-10-13

Windows BitLocker is Microsoft's disk encryption feature that protects sensitive data on lost or stolen devices. An open redirect vulnerability allows an attacker with physical access to bypass BitLocker's security protections and gain unauthorized access to encrypted data.

Technologies: Microsoft Windows BitLocker. Vendors: Microsoft.

Quick answers

Is CVE-2026-83500 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-83500 being exploited in the wild.
How severe is CVE-2026-83500?
Medium severity, with a CVSS score of 6.1, published 13 October 2026.
Which products and versions are affected?
Microsoft Windows BitLocker.
Is there a fix for CVE-2026-83500?
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-2026-83500 attacked?
It is attacked with physical access.
Am I affected by CVE-2026-83500?
Check whether you run Microsoft Windows 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

An open redirect vulnerability in Windows BitLocker allows an attacker to redirect users to untrusted sites, enabling bypass of BitLocker security features. The vulnerability requires physical access to the device to exploit. A fix is available from Microsoft.

Affected products

  • Microsoft Windows BitLocker

Timeline

  • 2026-10-13: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.