Windows CVE-2026-26111
HIGHCVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionNVD
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
AnalysisAI
Remote code execution in Windows RRAS across Server 2016, 2022, and 2025 via an integer overflow vulnerability allows authenticated attackers to execute arbitrary code over the network with high privileges. Public exploit code exists for this vulnerability, and no patch is currently available. …
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RemediationAI
Within 24 hours: Identify and inventory all systems running RRAS; disable RRAS services on non-critical systems and restrict network access to RRAS ports (TCP/UDP 1723, 500, 4500) to trusted networks only. Within 7 days: Implement enhanced monitoring and logging for RRAS traffic; conduct vulnerability scans to identify exposed instances; escalate patch development tracking with Microsoft. …
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