CVE-2026-50697 - Windows Common Log File System Driver Elevation of Privilege Vulnerability

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HIGH

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Published Jul 14, 2026

7.8

HIGH

CVSS 3.1

EPSS 0.40%

Description

Exposure of sensitive information to an unauthorized actor in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

Affected products

Vendor Microsoft Product Windows 10 Version 1607 Default
n/a
- Version
  10.0.14393.0
  Status
  affected
  Constraints
  <10.0.14393.9339
Vendor Microsoft Product Windows 10 Version 1809 Default
n/a
- Version
  10.0.17763.0
  Status
  affected
  Constraints
  <10.0.17763.9020
Vendor Microsoft Product Windows 10 Version 21H2 Default
n/a
- Version
  10.0.19044.0
  Status
  affected
  Constraints
  <10.0.19044.7548
Vendor Microsoft Product Windows 10 Version 22H2 Default
n/a
- Version
  10.0.19045.0
  Status
  affected
  Constraints
  <10.0.19045.7548
Vendor Microsoft Product Windows 11 Version 24H2 Default
n/a
- Version
  10.0.26100.0
  Status
  affected
  Constraints
  <10.0.26100.8875
Vendor Microsoft Product Windows 11 Version 25H2 Default
n/a
- Version
  10.0.26200.0
  Status
  affected
  Constraints
  <10.0.26200.8875
Vendor Microsoft Product Windows 11 version 26H1 Default
n/a
- Version
  10.0.28000.0
  Status
  affected
  Constraints
  <10.0.28000.2525
Vendor Microsoft Product Windows Server 2012 Default
n/a
- Version
  6.2.9200.0
  Status
  affected
  Constraints
  <6.2.9200.26226
Vendor Microsoft Product Windows Server 2012 (Server Core installation) Default
n/a
- Version
  6.2.9200.0
  Status
  affected
  Constraints
  <6.2.9200.26226
Vendor Microsoft Product Windows Server 2012 R2 Default
n/a
- Version
  6.3.9600.0
  Status
  affected
  Constraints
  <6.3.9600.23291
Vendor Microsoft Product Windows Server 2012 R2 (Server Core installation) Default
n/a
- Version
  6.3.9600.0
  Status
  affected
  Constraints
  <6.3.9600.23291
Vendor Microsoft Product Windows Server 2016 Default
n/a
- Version
  10.0.14393.0
  Status
  affected
  Constraints
  <10.0.14393.9339
Vendor Microsoft Product Windows Server 2016 (Server Core installation) Default
n/a
- Version
  10.0.14393.0
  Status
  affected
  Constraints
  <10.0.14393.9339
Vendor Microsoft Product Windows Server 2019 Default
n/a
- Version
  10.0.17763.0
  Status
  affected
  Constraints
  <10.0.17763.9020
Vendor Microsoft Product Windows Server 2019 (Server Core installation) Default
n/a
- Version
  10.0.17763.0
  Status
  affected
  Constraints
  <10.0.17763.9020
Vendor Microsoft Product Windows Server 2022 Default
n/a
- Version
  10.0.20348.0
  Status
  affected
  Constraints
  <10.0.20348.5386
Vendor Microsoft Product Windows Server 2025 Default
n/a
- Version
  10.0.26100.0
  Status
  affected
  Constraints
  <10.0.26100.33158
Vendor Microsoft Product Windows Server 2025 (Server Core installation) Default
n/a
- Version
  10.0.26100.0
  Status
  affected
  Constraints
  <10.0.26100.33158

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Microsoft

Windows 10 Version 1607

n/a

Version	Status	Constraints
10.0.14393.0	affected	<10.0.14393.9339

Microsoft

Windows 10 Version 1809

n/a

Version	Status	Constraints
10.0.17763.0	affected	<10.0.17763.9020

Microsoft

Windows 10 Version 21H2

n/a

Version	Status	Constraints
10.0.19044.0	affected	<10.0.19044.7548

Microsoft

Windows 10 Version 22H2

n/a

Version	Status	Constraints
10.0.19045.0	affected	<10.0.19045.7548

Microsoft

Windows 11 Version 24H2

n/a

Version	Status	Constraints
10.0.26100.0	affected	<10.0.26100.8875

Microsoft

Windows 11 Version 25H2

n/a

Version	Status	Constraints
10.0.26200.0	affected	<10.0.26200.8875

Microsoft

Windows 11 version 26H1

n/a

Version	Status	Constraints
10.0.28000.0	affected	<10.0.28000.2525

Microsoft

Windows Server 2012

n/a

Version	Status	Constraints
6.2.9200.0	affected	<6.2.9200.26226

Microsoft

Windows Server 2012 (Server Core installation)

n/a

Version	Status	Constraints
6.2.9200.0	affected	<6.2.9200.26226

Microsoft

Windows Server 2012 R2

n/a

Version	Status	Constraints
6.3.9600.0	affected	<6.3.9600.23291

Microsoft

Windows Server 2012 R2 (Server Core installation)

n/a

Version	Status	Constraints
6.3.9600.0	affected	<6.3.9600.23291

Microsoft

Windows Server 2016

n/a

Version	Status	Constraints
10.0.14393.0	affected	<10.0.14393.9339

Microsoft

Windows Server 2016 (Server Core installation)

n/a

Version	Status	Constraints
10.0.14393.0	affected	<10.0.14393.9339

Microsoft

Windows Server 2019

n/a

Version	Status	Constraints
10.0.17763.0	affected	<10.0.17763.9020

Microsoft

Windows Server 2019 (Server Core installation)

n/a

Version	Status	Constraints
10.0.17763.0	affected	<10.0.17763.9020

Microsoft

Windows Server 2022

n/a

Version	Status	Constraints
10.0.20348.0	affected	<10.0.20348.5386

Microsoft

Windows Server 2025

n/a

Version	Status	Constraints
10.0.26100.0	affected	<10.0.26100.33158

Microsoft

Windows Server 2025 (Server Core installation)

n/a

Version	Status	Constraints
10.0.26100.0	affected	<10.0.26100.33158

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-200

Exposure of Sensitive Information

References (2)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-44002
Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50697
vendor-advisorypatchVendor Advisory

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-44002		Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50697		vendor-advisorypatchVendor Advisory