CVE-2026-83655: Network Policy Server (NPS) Denial of Service Vulnerability
Network Policy Server (NPS) Denial of Service Vulnerability
Other sources
Out-of-bounds read in Network Policy Server (NPS) allows an unauthorized attacker to deny service over a network.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
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Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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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 - Upgrade
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Fixed in 10.0.26300.9711Patch KB5127648
Event History
Frequently Asked Questions
What access does an attacker need to exploit this issue?
The vulnerability is remotely exploitable over a network and requires no privileges or user interaction. The attack complexity is rated low.
Does exploitation expose or modify data?
The provided impact metrics indicate no confidentiality or integrity impact. The stated effect is denial of service, with a high availability impact.