cve-2025-49663

About this tag
CVE-2025-49663 is a critical heap-based buffer overflow vulnerability in the Windows Routing and Remote Access Service (RRAS). It allows remote attackers to execute arbitrary code on unpatched RRAS hosts, potentially leading to full system compromise. Administrators should treat any RRAS-enabled servers exposed to untrusted networks as high-priority for patching, isolation, and forensic review. The vulnerability is part of a family of RRAS defects that also includes use-of-uninitialized-resource issues. Confusion over exact CVE identifiers in some advisories underscores the need to verify vendor advisories and KB numbers for each affected OS build before applying patches.

  1. RRAS Vulnerabilities Threaten Windows VPN Gateways: Patch Now

    A newly disclosed vulnerability affecting Windows' Routing and Remote Access Service (RRAS) can allow remote attackers to execute code against unpatched RRAS hosts — administrators must treat any RRAS-enabled servers exposed to untrusted networks as high-priority for patching, isolation, and...
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    • buffer overflow cve-2025-49657 cve-2025-49663 exposure heap overflow incident response kb patch microsoft update guide network perimeter patch management rce remote access rras rras mitigation security advisory security patch vpn vulnerability windows server
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    • Forum: Security Alerts

  2. Critical Windows RRAS Vulnerability CVE-2025-49663: Protect Your Systems

    A critical vulnerability, identified as CVE-2025-49663, has been discovered in the Windows Routing and Remote Access Service (RRAS), posing a significant risk to systems running this service. This flaw is a heap-based buffer overflow that allows unauthorized attackers to execute arbitrary code...
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    • buffer overflow cve-2025-49663 cybersecurity intrusion detection microsoft security network security network segmentation remote code execution rras vulnerability security security best practices security updates system administration vulnerability vulnerability management windows security windows server
    • Replies: 0
    • Forum: Security Alerts