CVE-2026-83788: Windows rndismp6.sys Information Disclosure Vulnerability
Published Oct 13, 2026
·Updated
Buffer over-read in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack.
Other sources
Windows rndismp6.sys Information Disclosure Vulnerability
— Microsoft
Affected Software
59 affected componentsFixes available
Microsoft Windows
Microsoft Windows Server 2012 R2<6.3.9600.23470
6.3.9600.23470
Microsoft Windows Server 2012 R2<6.3.9600.23470
6.3.9600.23470
Microsoft Windows Server 2012<6.2.9200.26434
6.2.9200.26434
Microsoft Windows Server 2012<6.2.9200.26434
6.2.9200.26434
Microsoft Windows Server 2016<10.0.14393.9612
10.0.14393.9612
Microsoft Windows Server 2025<10.0.26100.33650
10.0.26100.33650
Microsoft Windows Server 2016<10.0.14393.9612
10.0.14393.9612
Microsoft Windows Server 2025<10.0.26100.33650
10.0.26100.33650
Microsoft Windows Server 2019<10.0.17763.9376
10.0.17763.9376
Microsoft Windows Server 2022<10.0.20348.5761
10.0.20348.5761
Microsoft Windows Server 2022<10.0.20348.5761
10.0.20348.5761
Microsoft Windows Server 2019<10.0.17763.9376
10.0.17763.9376
Microsoft Windows 10 1607<10.0.14393.9612
Microsoft Windows 10 1607<10.0.14393.9612
Microsoft Windows 10 1809<10.0.17763.9376
Microsoft Windows 10 1809<10.0.17763.9376
Microsoft Windows 10 21h2<10.0.19044.7807
Microsoft Windows 10 21h2<10.0.19044.7807
Microsoft Windows 10 21h2<10.0.19044.7807
Microsoft Windows 10 22h2<10.0.19045.7807
Microsoft Windows 10 22h2<10.0.19045.7807
Microsoft Windows 10 22h2<10.0.19045.7807
Microsoft Windows 11 23h2<10.0.22631.7652
Microsoft Windows 11 23h2<10.0.22631.7652
Microsoft Windows 11 24h2<10.0.26100.9711
Microsoft Windows 11 24h2<10.0.26100.9711
Microsoft Windows 11 25h2<10.0.26200.9711
Microsoft Windows 11 25h2<10.0.26200.9711
Microsoft Windows 11 26h1<10.0.28000.3231
Microsoft Windows 11 26h1<10.0.28000.3231
Microsoft Windows 11 26h2<10.0.26300.9711
Microsoft Windows 11 26h2<10.0.26300.9711
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.9612
Microsoft Windows Server 2019<10.0.17763.9376
Microsoft Windows Server 2022<10.0.20348.5761
Microsoft Windows Server 2025<10.0.26100.33650
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.3231
10.0.28000.3231
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.3231
10.0.28000.3231
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9612
10.0.14393.9612
Microsoft Windows 11=26H2, >=10.0.26300<10.0.26300.9711
10.0.26300.9711
Microsoft Windows 11=26H2, >=10.0.26300<10.0.26300.9711
10.0.26300.9711
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9612
10.0.14393.9612
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.9711
10.0.26100.9711
Microsoft Windows 11=23H2, >=10.0.22631<10.0.22631.7652
10.0.22631.7652
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.9711
10.0.26100.9711
Microsoft Windows 11=23H2, >=10.0.22631<10.0.22631.7652
10.0.22631.7652
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.9711
10.0.26200.9711
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.9711
10.0.26200.9711
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7807
10.0.19044.7807
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7807
10.0.19045.7807
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7807
10.0.19044.7807
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7807
10.0.19045.7807
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9376
10.0.17763.9376
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7807
10.0.19045.7807
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9376
10.0.17763.9376
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7807
10.0.19044.7807
Remediation
Event History
Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·07:00 PM
Data Sourced
via MITRE·07:00 PM
DescriptionSeverity
Data Sourced
via NVD·07:20 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Which systems should be prioritized for triage?
Systems running Microsoft Windows 10, Windows 11, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, or Windows Server 2025 should be reviewed, particularly where an attacker could obtain physical access.
2
What level of access does an attacker need?
Exploitation requires physical access. The supplied vector indicates that no privileges and no user interaction are required.
3
What is the expected security impact?
The vulnerability is assessed as having high confidentiality impact. No integrity or availability impact is indicated in the supplied severity vector.