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CVE-2025-49670

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Windows Server 2008 R2 Service Pack 1	>= 6.1.7601.0, < 6.1.7601.27820
Microsoft	Windows Server 2008 R2 Service Pack 1 (Server Core installation)	>= 6.1.7601.0, < 6.1.7601.27820
Microsoft	Windows Server 2008 Service Pack 2	>= 6.0.6003.0, < 6.0.6003.23418
Microsoft	Windows Server 2008 Service Pack 2 (Server Core installation)	>= 6.0.6003.0, < 6.0.6003.23418
Microsoft	Windows Server 2012	>= 6.2.9200.0, < 6.2.9200.25573
Microsoft	Windows Server 2012 (Server Core installation)	>= 6.2.9200.0, < 6.2.9200.25573
Microsoft	Windows Server 2012 R2	>= 6.3.9600.0, < 6.3.9600.22676
Microsoft	Windows Server 2012 R2 (Server Core installation)	>= 6.3.9600.0, < 6.3.9600.22676
Microsoft	Windows Server 2016	>= 10.0.14393.0, < 10.0.14393.8246
Microsoft	Windows Server 2016 (Server Core installation)	>= 10.0.14393.0, < 10.0.14393.8246
Microsoft	Windows Server 2019	>= 10.0.17763.0, < 10.0.17763.7558
Microsoft	Windows Server 2019 (Server Core installation)	>= 10.0.17763.0, < 10.0.17763.7558
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.3932
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	>= 10.0.25398.0, < 10.0.25398.1732
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.4652
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.4652

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49670Vendor Advisory

Timeline

Published: Jul 8, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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CVE-2025-49670: Medium severity, CVSS 6.5 | Vulnix