Medium severity · published Jul 14, 2026
CVE-2026-50661
Windows BitLocker Security Feature Bypass Vulnerability
4.6
CVSS
0.5%
EPSS
No
On KEV
Description
Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
W1
Windows 10 Version 1607 · Microsoft
10.0.14393.0 before 10.0.14393.9339 · source: vendor
W1
Windows 10 Version 1809 · Microsoft
10.0.17763.0 before 10.0.17763.9020 · source: vendor
W1
Windows 10 Version 21H2 · Microsoft
10.0.19044.0 before 10.0.19044.7548 · source: vendor
W1
Windows 10 Version 22H2 · Microsoft
10.0.19045.0 before 10.0.19045.7548 · source: vendor
W1
Windows 11 Version 24H2 · Microsoft
10.0.26100.0 before 10.0.26100.8875 · source: vendor
W1
Windows 11 Version 25H2 · Microsoft
10.0.26200.0 before 10.0.26200.8875 · source: vendor
W1
Windows 11 version 26H1 · Microsoft
10.0.28000.0 before 10.0.28000.2525 · source: vendor
WS
Windows Server 2016 · Microsoft
10.0.14393.0 before 10.0.14393.9339 · source: vendor, NVD
WS
Windows Server 2016 (Server Core installation) · Microsoft
10.0.14393.0 before 10.0.14393.9339 · source: vendor
WS
Windows Server 2019 · Microsoft
10.0.17763.0 before 10.0.17763.9020 · source: vendor, NVD
WS
Windows Server 2019 (Server Core installation) · Microsoft
10.0.17763.0 before 10.0.17763.9020 · source: vendor
WS
Windows Server 2022 · Microsoft
10.0.20348.0 before 10.0.20348.5386 · source: vendor, NVD
In the news
VulnerabilityCritical
AI-driven bug hunting fuels record Microsoft Patch Tuesday
Microsoft has released patches for 570+ vulnerabilities on July 2026 Patch Tuesday, including two that are being leveraged by attackers (CVE-2026-56155 and CVE-2026-56164), and one that was previouly disclosed (CVE-2026-50661). The release was once again followed by Nightmare Eclipse publishing a stripped down proof-of-concept exploit for an unpatched Windows elevation of privilege (EoP) vulnerability, which the researcher dubbed LegacyHive. Vulnerabilities of note CVE-2026-56155 is an EoP flaw affecting Active Directory Federation Services (ADFS), and has … More →
The post AI-driven bug hunting fuels record Microsoft Patch Tuesday appeared first on Help Net Security .
Jul 15, 2026·Help Net Security
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50661
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-50661
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50661
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