CVE-2026-83835: Windows Common Log File System Driver Information Disclosure Vulnerability
Buffer over-read in Windows Common Log File System Driver allows an authorized attacker to disclose information locally.
Other sources
Windows Common Log File System Driver Information Disclosure Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
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Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
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Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
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Fixed in 10.0.26200.9711Patch KB5127648
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running the listed Microsoft Windows client or server products are in scope. Exploitation is local, so an attacker must be able to execute code or otherwise operate on the affected system.
What level of access does an attacker need?
The attacker must be authorized and have low privileges on the affected Windows system. No user interaction is required.
What is the likely security impact?
Successful exploitation can disclose information through a buffer over-read in the Windows Common Log File System Driver. The provided severity vector indicates high confidentiality impact, with no integrity or availability impact.