CVE-2026-69999: Windows Update Information Disclosure Vulnerability
Out-of-bounds read in Windows Update allows an authorized attacker to disclose information locally.
Other sources
Windows Update 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 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized on the affected system and able to execute locally. The provided data does not indicate that remote or unauthenticated attackers can exploit it.
What is the likely impact of successful exploitation?
Successful exploitation can disclose information from an affected system. The supplied severity vector indicates high confidentiality impact, with no integrity or availability impact stated.
Which products are identified as affected?
The affected software listed is Microsoft Windows 11 and Microsoft Windows Server 2025.