CVE-2026-85322: Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability
Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
Other sources
Windows Routing and Remote Access Service (RRAS) 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 10.0.26300.9711Patch KB5127648 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - 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 10.0.28000.3231Patch KB5127646 - 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 10.0.26100.33650Patch 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 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The issue is exploitable over the network and does not require prior privileges or user interaction. An unauthorized attacker could disclose information if they can reach the affected RRAS service.
Which systems should be evaluated for exposure?
Evaluate Microsoft Windows 10 and Windows 11 systems, along with Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025 systems. Exposure depends on whether the Routing and Remote Access Service is reachable over the network.
What is the expected security impact?
The reported impact is information disclosure with high confidentiality impact. Integrity and availability impacts are not indicated.