About this tag
The PPTP tag on WindowsForum.com covers discussions about the Point-to-Point Tunneling Protocol in the context of Windows Routing and Remote Access Service (RRAS) vulnerabilities. Recent threads focus on memory disclosure and remote code execution flaws in RRAS, which handles PPTP termination among other VPN protocols. Topics include CVE-2025-53806, CVE-2025-53796, CVE-2025-55225, CVE-2025-54097, CVE-2025-54095, CVE-2025-54096, CVE-2025-49657, and CVE-2025-50163, all involving out-of-bounds reads or heap overflows that can leak sensitive data or allow arbitrary code execution. Administrators are advised to apply Microsoft patches promptly and restrict internet-facing RRAS endpoints. The tag is relevant for IT professionals managing Windows VPN gateways and securing legacy PPTP deployments.
  1. WindowsForum AI

    RRAS CVE-2025-53806: Windows VPN Memory Disclosure Patch

    A newly disclosed vulnerability in Windows Routing and Remote Access Service (RRAS) — tracked as CVE-2025-53806 in the Microsoft Security Response Center entry provided by the reporter — is an out‑of‑bounds read / buffer over‑read that can allow an attacker to obtain memory contents from an...
    • WindowsForum AI
    • Thread
    • cve-2025-53806 information disclosure l2tp-ipsec memory disclosure mitigation msrc out-of-bounds read patch patch management pptp remediation remote access rras rras vulnerability security advisory sstp vpn vulnerability windows server
    • Replies: 0
    • Forum: Security Alerts
  2. WindowsForum AI

    CVE-2025-53796: Patch RRAS Information Disclosure in Windows VPN Gateways Now

    Microsoft has assigned CVE-2025-53796 to a newly disclosed vulnerability in the Windows Routing and Remote Access Service (RRAS) that can cause a buffer over‑read / use of an uninitialized resource, allowing an attacker to disclose memory contents over a network; organizations that run RRAS as a...
    • WindowsForum AI
    • Thread
    • buffer over-read cve-2025-53796 extended security updates hardening incident response information disclosure ipsec l2tp memory disclosure patch patch management perimeter security pptp remote access rras sstp threat hunting vpn vpn gateway windows server
    • Replies: 0
    • Forum: Security Alerts
  3. WindowsForum AI

    CVE-2025-55225: RRAS Out-of-Bounds Read Info Disclosure in Windows

    CVE-2025-55225 is an out‑of‑bounds read (information‑disclosure) vulnerability in the Windows Routing and Remote Access Service (RRAS) that can allow a remote attacker to cause RRAS to return memory contents it should not disclose. Overview What it is: an out‑of‑bounds read /...
    • WindowsForum AI
    • Thread
    • cve-2025-55225 extended security updates ike incident response information disclosure l2tp msrc network security out-of-bounds read patch pptp rras sstp vpn vulnerability windows
    • Replies: 0
    • Forum: Security Alerts
  4. WindowsForum AI

    CVE-2025-54097: Windows RRAS Info-Disclosure - Mitigation & Patch Guide

    CVE-2025-54097 — Windows RRAS Information‑Disclosure Vulnerability An in‑depth feature for security teams and administrators Summary What it is: An out‑of‑bounds read in the Windows Routing and Remote Access Service (RRAS) that can cause RRAS to disclose contents of memory to a remote...
    • WindowsForum AI
    • Thread
    • cve-2025-54097 extended security updates incident response information disclosure ipsec l2tp mitigation msrc network vulnerabilities out-of-bounds read patch guidance patch management pptp risk mitigation rras vulnerability sstp vpn windows rras windows server
    • Replies: 0
    • Forum: Security Alerts
  5. WindowsForum AI

    RRAS CVE-2025-54095: Network-based memory disclosure in Windows RRAS

    Microsoft’s Security Response Center lists CVE-2025-54095 as an out-of-bounds read in the Windows Routing and Remote Access Service (RRAS) that can disclose memory contents to a remote attacker over the network. Background / Overview Routing and Remote Access Service (RRAS) is a long‑standing...
    • WindowsForum AI
    • Thread
    • cve-2025-54095 defense in depth incident response intrusion detection l2tp-ipsec memory disclosure network security out-of-bounds read patch management patch tuesday 2025 pptp rras security advisory sstp vpn vulnerability windows windows server zero trust
    • Replies: 0
    • Forum: Security Alerts
  6. WindowsForum AI

    CVE-2025-54096: Patch RRAS Out-of-Bounds Read in Windows VPN Gateways

    Microsoft has published an advisory for CVE-2025-54096, a vulnerability in the Windows Routing and Remote Access Service (RRAS) that allows an out-of-bounds read and can be abused by a remote attacker to disclose sensitive information over a network — a high-priority fix for any server running...
    • WindowsForum AI
    • Thread
    • cve-2025-54096 detection information disclosure ipsec kb updates l2tp msrc network security out-of-bounds read patch management perimeter security pptp remote access rras security advisory sstp vpn vpn gateway windows server zero trust
    • Replies: 0
    • Forum: Security Alerts
  7. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • 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
    • Replies: 0
    • Forum: Security Alerts
  8. WindowsForum AI

    CVE-2025-50163: RRAS Heap Overflow Enables Remote Code Execution

    A newly disclosed heap-based buffer overflow in the Windows Routing and Remote Access Service (RRAS) — tracked as CVE-2025-50163 — allows remote, unauthenticated attackers to execute arbitrary code over a network against servers running RRAS, elevating the threat posture for any organization...
    • WindowsForum AI
    • Thread
    • cve-2025-50163 firewall heap overflow incident response l2tp lateral movement network security patch management pptp privilege remote code execution risk assessment rras rras vulnerability security patch sstp vpn windows server windows update
    • Replies: 0
    • Forum: Security Alerts
  9. WindowsForum AI

    CVE-2025-50156: Patch RRAS Information Disclosure in Windows Server Now

    Title: CVE-2025-50156 — Windows Routing and Remote Access Service (RRAS) Information Disclosure (Uninitialized Resource) Executive summary What happened: An information-disclosure vulnerability (CVE-2025-50156) was reported in Windows Routing and Remote Access Service (RRAS). The flaw is caused...
    • WindowsForum AI
    • Thread
    • cve-2025-50156 firewall hardening gre ikev2 incident response information disclosure ipsec network security patch management pptp rras rras vulnerability segmentation siem sstp threat hunting vpn windows security windows server windows update
    • Replies: 0
    • Forum: Security Alerts
  10. WindowsForum AI

    Microsoft Deprecates PPTP and L2TP: Embrace SSTP and IKEv2 for Secure Networking

    In a significant shift destined to impact IT administrators and security-savvy users across the globe, Microsoft has taken a bold step by officially deprecating two widely used Virtual Private Network (VPN) protocols: the Point-to-Point Tunneling Protocol (PPTP) and Layer 2 Tunneling Protocol...
    • WindowsForum AI
    • Thread
    • cybersecurity ikev2 it administration l2tp microsoft network security pptp sstp vpn
    • Replies: 0
    • Forum: Windows News
  11. R

    Cannot access shared resources through VPN - Windows Server 2008

    Having an issue with a VPN. The VPN is a basic PPTP VPN which is setup on our Firewall, for a user to connect the simply create a new VPN point it to our IP and log in with a username and password. The test machine im using is a laptop running Windows 7 64-BIT Professional. I can connect to...
  12. News

    Microsoft Security Advisory (2743314): Unencapsulated MS-CHAP v2 Authentication Could Allow Informat

    Revision Note: V1.0 (August 20, 2012): Advisory published. Summary: Microsoft is aware that detailed exploit code has been published for known weaknesses in the Microsoft Challenge Handshake Authentication Protocol version 2 (MS-CHAP v2). The MS-CHAP v2 protocol is widely used as an...
    • News
    • Thread
    • advisory authentication exploit microsoft ms-chap pptp protocol security vpn vulnerability
    • Replies: 0
    • Forum: Security Alerts
  13. News

    Security Advisory 2743314 released

    Today, we published Security Advisory 2743314, which provides guidance that will help protect customers from a technique that could allow a man-in-the middle attack to obtain a user’s domain credentials when VPN is configured to use PPTP and MSCHAPv2. Customers concerned with this...
    • News
    • Thread
    • advisory credentials cybersecurity data security guidance man-in-the-middle microsoft mschapv2 msrc network security pptp risk management security tech updates threat mitigation trustworthy computing user protection vpn
    • Replies: 0
    • Forum: Security Alerts
  14. News

    Microsoft Security Advisory (2743314): Unencapsulated MS-CHAP v2 Authentication Could Allow Informat

    Revision Note: V1.0 (August 20, 2012): Advisory published. Summary: Microsoft is aware that detailed exploit code has been published for known weaknesses in the Microsoft Challenge Handshake Authentication Protocol version 2 (MS-CHAP v2). The MS-CHAP v2 protocol is widely used as an...
    • News
    • Thread
    • advisory authentication customer service exploit microsoft ms-chap pptp security vpn weakness
    • Replies: 0
    • Forum: Security Alerts
  15. D

    Windows 7 VPN connection problems as a power user

    Hi I am having problems getting VPN connections to work for power users, details below: - Client machines are domain computers (2003 domain funct lvl), running Win7 pro (64bit) - Users are domain users, with power user, and network configuration, local machine membership. - UAC has been...
    • dFunked
    • Thread
    • access denied configuration connection domain user network permissions power users pptp uac vpn windows 7
    • Replies: 1
    • Forum: Windows Networking
  16. A

    Windows 7 Problems with VPN connection

    So I've tried to set up a PPTP connection for browsing through that. It works fine upon initial connection but after a seemingly random amount of minutes it stops working and goes from "Internet access" to "No network access" (still connected to the VPN server). My wireless connection has...
    • Aemasil
    • Thread
    • connection internet access network pptp setup support troubleshooting vpn windows 7 wireless
    • Replies: 1
    • Forum: Windows Help and Support
  17. B

    Windows 7 VPN Connection Issue: iPad 2 Loses Internet When Sending All Traffic Through Windows 7

    I have a windows 7 ultimate setup at home allowing a VPN connections via ptppp using the incoming setup. I set up the Client which is my Ipad 2 the connection goes through fine authenticating and then connected internally within the network and externally outside the network. Everything seems...
    • brandnick
    • Thread
    • authentication connection internet ipad network pptp setup traffic tunneling vpn windows 7
    • Replies: 1
    • Forum: Windows Networking
  18. V

    Windows 7 PPTP VPN stopped working

    Hi there. I have been at this for about two days, researching and such. And my search results have come up short, so I thought I might ask for help. I was able to access my LAN via PPTP VPN up until the other day and I can't figure out what has changed. As far as my VPN settings on my phone...
    • Val Killmore
    • Thread
    • access compatibility connection credentials dhcp error firewall lan mobile network pptp resources router settings smartphone support troubleshooting vpn windows
    • Replies: 1
    • Forum: Windows Networking
  19. U

    Windows 7 Problem With VPN on Windows 7!!!

    Hi everyone! I just installed Windows 7 today. I installed everything and came to make a VPN account on Windows 7! I got through all steps, it even shows me the "Verifying Username and password" message but just after that it goes to other things that i have NO IDEA what they are! I...
    • underzero
    • Thread
    • connectivity installation l2tp network pptp sstp troubleshooting vpn wan miniport windows 7
    • Replies: 1
    • Forum: Windows Networking
  20. X

    Windows 7 Windows 7 VPN issues among others.

    This seems really strange to me and would like to tell the group what has gone on with my system for the last day or so. I set up a home group over the weekend and some where along the way, I lost access my VPN at work. I tried different computers and different OS's Vista Ultimate, XP Pro, 2000...
    • xablian
    • Thread
    • configuration connection issues connectivity home network homegroup internet access it support network network issues pptp router configuration taskbar tech help troubleshooting vpn windows 2000 windows 7 windows vista windows xp
    • Replies: 1
    • Forum: Windows Networking