CVE-2026-20828: Windows rndismp6.sys Information Disclosure Vulnerability
Out-of-bounds read in Windows Internet Connection Sharing (ICS) allows an unauthorized attacker to disclose information with a physical attack.
Other sources
Windows rndismp6.sys Information Disclosure Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.25868Patch KB5073698 - Upgrade
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Fixed in 6.0.6003.23717Patch KB5073700 - Upgrade
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Fixed in 6.3.9600.22968Patch KB5073696 - Upgrade
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Fixed in 10.0.14393.8783Patch KB5073722 - Upgrade
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Fixed in 6.1.7601.28117Patch KB5073699 - Upgrade
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Fixed in 10.0.26100.7623Patch KB5074109 - Upgrade
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Fixed in 10.0.22631.6491Patch KB5073455 - Upgrade
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Fixed in 10.0.25398.2092Patch KB5073450 - Upgrade
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Fixed in 10.0.26100.32230Patch KB5073379 - Upgrade
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Fixed in 10.0.26200.7623Patch KB5074109 - Upgrade
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Fixed in 10.0.19045.6809Patch KB5073724 - Upgrade
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Fixed in 10.0.19044.6809Patch KB5073724 - Upgrade
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Fixed in 10.0.20348.4648Patch KB5073457 - Upgrade
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Fixed in 10.0.17763.8276Patch KB5073723
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20828?
The CVE-2026-20828 vulnerability has a medium severity rating due to its potential for information disclosure.
How do I fix CVE-2026-20828?
To fix CVE-2026-20828, apply the latest security patches available for your affected Microsoft Windows products.
Which Microsoft products are affected by CVE-2026-20828?
CVE-2026-20828 affects various versions of Microsoft Windows Server 2008, 2008 R2, 2012, 2016, and Windows 10.
Can CVE-2026-20828 be exploited remotely?
No, CVE-2026-20828 requires a physical access attack to exploit the information disclosure vulnerability.
Is it possible to assess the risk of CVE-2026-20828 in my environment?
Yes, assessing the risk involves identifying whether your systems are running affected versions of Windows and evaluating the potential for unauthorized physical access.