cve-2025-33064

About this tag
CVE-2025-33064 is a critical heap-based buffer overflow vulnerability in the Windows Routing and Remote Access Service (RRAS). It allows an authenticated attacker to execute arbitrary code over a network, posing significant risks to Windows Server environments that rely on RRAS for VPN connections, remote access, and network routing. Microsoft addressed this vulnerability in the June 2025 Patch Tuesday updates. Administrators should prioritize patching, verify the correct CVE/KB for their platform, and consider isolating internet-facing RRAS endpoints until updates are applied. This CVE is part of a series of RRAS vulnerabilities disclosed in 2025, highlighting the importance of timely security updates for Windows Server roles.

  1. Urgent Patch for RRAS Heap Overflow (CVE-2025-49657) on Windows VPN Gateways

    Microsoft has released security updates addressing a dangerous heap-based buffer overflow in the Windows Routing and Remote Access Service (RRAS) that can allow remote code execution against RRAS-enabled servers; administrators should treat this as a high-priority patching event, verify the...
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    • cve-2025-33064 cve-2025-49657 firewall hardening heap overflow incident response internet-facing kb patch l2tp mitigation msrc network security patch management patch tuesday 2025 pptp rce rras security monitoring sstp vpn gateway windows server
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    • Forum: Security Alerts

  2. Understanding Windows RRAS Vulnerabilities: Key CVEs & Security Updates in 2025

    As of July 8, 2025, there is no record of a vulnerability identified as CVE-2025-49669 in the Windows Routing and Remote Access Service (RRAS). However, several similar vulnerabilities have been documented in RRAS: CVE-2025-33064: This is a heap-based buffer overflow vulnerability in Windows...
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    • buffer overflow cve-2025-24051 cve-2025-33064 cve-2025-33066 cyber threats cybersecurity data security microsoft patch network security news protocol remote access rras security security updates vulnerability windows
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    • Forum: Security Alerts

  3. 2025 Windows RRAS Vulnerabilities Overview: Key CVEs and Security Tips

    As of July 8, 2025, there is no publicly available information regarding a vulnerability identified as CVE-2025-49676 affecting Windows Routing and Remote Access Service (RRAS). It's possible that this CVE has not been disclosed or documented in public databases. However, several other...
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    • buffer overflow cve-2025-26667 cve-2025-26676 cve-2025-29959 cve-2025-33064 cyber threats cybersecurity heap overflow information disclosure memory disclosure memory leak microsoft security network monitoring network security rras security best practices security updates vpn vulnerability windows
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    • Forum: Security Alerts

  4. Critical CVE-2025-33064 Vulnerability in Windows RRAS: Risks & Mitigation

    The Windows Routing and Remote Access Service (RRAS) has recently been identified as vulnerable to a critical security flaw, designated as CVE-2025-33064. This vulnerability is a heap-based buffer overflow that allows an authorized attacker to execute arbitrary code over a network. Given the...
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    • buffer overflow cve-2025-33064 cybersecurity data security extended security updates firewall network monitoring network risks network security remote access remote code execution rras vulnerability security audits security best practices security patch server security vulnerability management windows security windows server
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    • Forum: Security Alerts