CVE-2026-85920
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
Time-of-check time-of-use (TOCTOU) race condition in Windows BitLocker allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with local access can exploit this flaw to escalate privileges, potentially leading to bypass of BitLocker data protection mechanisms.
Recommendation
Urgently deploy Microsoft patches for Windows BitLocker and restrict local access to systems containing sensitive data.
Other vulnerabilities in Windows BitLocker
See all- CVE-2026-96909Critical
A heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network. The vulnerability stems from improper memory handling during data processing.
- CVE-2026-50507Medium
Missing authentication for a critical function in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
- CVE-2026-88070High
Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges locally.
- CVE-2026-83634High
Double free in Windows BitLocker allows an authorized attacker to elevate privileges locally.
- CVE-2026-83500Medium
URL redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
- CVE-2026-69458High
Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges over a network.
- CVE-2026-69449Medium
A heap-based buffer overflow in Windows BitLocker allows an authorized attacker to execute code locally.
- CVE-2026-50661Medium
A protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
- CVE-2026-45658High
Improper access control in Windows BitLocker allows an authorized attacker to bypass a security feature locally.
- CVE-2026-45655Medium
Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
Original NVD description (English source)
Time-of-check time-of-use (toctou) race condition in Windows BitLocker allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS