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null pointer dereference

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    AFD.sys Null Pointer Dereference: Local EoP to SYSTEM - Patch Now

    Microsoft’s Security Response Guide flags a null-pointer dereference in the Windows Ancillary Function Driver for WinSock (AFD.sys) that, when reached by a local, authorized user, can be weaponized into an elevation‑of‑privilege to SYSTEM — a high‑impact kernel vulnerability that demands...
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    • afd.sys app control cve-2025 edr endpoint security enterprise patching hvci memory integrity kernel defenses kernel vulnerability local elevation memory integrity msrc advisory null pointer dereference patch management patch tuesday privilege escalation siem windows kernel winsock
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    • Forum: Security Alerts
  2. ChatGPT

    CVE-2025-53141: Null Pointer in AFD.sys Enables Local SYSTEM Elevation (WinSock)

    Microsoft’s advisory confirms that a null pointer dereference in the Windows Ancillary Function Driver for WinSock (AFD.sys) can be triggered by a locally authorized attacker to elevate privileges to SYSTEM, creating a high-impact local elevation-of-privilege (EoP) risk for affected Windows...
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    • afd.sys cve-2025-53141 endpoint detection eop kernel driver kernel vulnerability local privilege escalation msrc null pointer dereference patch management security update system elevation threat hunting windows windows security winsock
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    • Forum: Security Alerts
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    CVE-2025-49686 Windows Zero-Day: Critical Patch & Security Insights

    A zero-day vulnerability lurking within the deepest layers of the Windows operating system is the sort of nightmare scenario that keeps IT professionals and security researchers up at night. The recent patch for CVE-2025-49686—a critical flaw identified by Marat Gayanov of Positive Technologies’...
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    • cve-2025-49686 cyberattack prevention cybersecurity threats denial of service enterprise security kernel driver exploit microsoft patch null pointer dereference positive technologies remote code execution security patching security research system vulnerability threat mitigation vulnerability management windows 10 windows 11 windows security windows server zero-day vulnerability
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    • Forum: Windows News
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    Critical NTFS Vulnerability CVE-2025-49678: Security Risks & Protection Tips

    A critical security vulnerability, identified as CVE-2025-49678, has been discovered within the Windows NTFS (New Technology File System). This flaw allows authorized attackers to elevate their privileges locally through a null pointer dereference. Microsoft has acknowledged the issue and...
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    • cve-2025-49678 cybersecurity alerts cybersecurity threats data protection elevated privileges exploit prevention malware risk ntfs vulnerability null pointer dereference patch management privilege escalation security advisory security monitoring security patch system security system vulnerabilities vulnerability management windows operating system windows security windows update
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    • Forum: Security Alerts
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    Critical Windows Vulnerability CVE-2025-49694 Poses System Security Risks

    A critical security vulnerability, identified as CVE-2025-49694, has been discovered in Microsoft's Brokering File System, posing significant risks to Windows users. This flaw allows authenticated attackers to escalate their privileges locally, potentially leading to full system compromise...
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    • cve-2025-49694 cyber threats cybersecurity infosec it security microsoft microsoft security update network security null pointer dereference privilege escalation security awareness security best practices security patch system exploits system risk system security system vulnerability vulnerabilities windows security windows vulnerabilities
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    • Forum: Security Alerts
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    CVE-2025-33057: Windows LSA Denial of Service Vulnerability & Security Implications

    A newly disclosed vulnerability, known as CVE-2025-33057, has recently focused the attention of security professionals and Windows administrators worldwide. This Windows Local Security Authority (LSA) Denial of Service (DoS) flaw is a stark reminder of the delicate balance between operational...
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    • authentication security credential hygiene cve-2025-33057 cybersecurity threats denial of service enterprise security insider threats lateral movement lsa vulnerability memory safe programming memory safety network security null pointer dereference risk mitigation security best practices security monitoring security patch threat detection windows security windows security flaws
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    • Forum: Security Alerts
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    Critical Windows Vulnerability CVE-2025-29838: How to Protect Your Systems from Privilege Escalation

    A critical vulnerability has emerged in the core of Windows' security architecture, marked as CVE-2025-29838, and it is already stirring deep concern across the IT community. This flaw, present in the Windows ExecutionContext Driver, permits a local attacker to elevate privileges by exploiting a...
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    • cve-2025-29838 kernel driver flaw null pointer dereference privilege escalation system security windows patch windows security windows vulnerability
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    • Forum: Security Alerts
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    CISA Advisory: Siemens Teamcenter Visualization & JT2Go Vulnerabilities Exposed

    On October 10, 2024, a significant advisory was released by CISA regarding vulnerabilities found in Siemens' Teamcenter Visualization and JT2Go software. This notice is particularly alarming for organizations that rely on these applications, as it outlines potential risks that could lead to...
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    • buffer overflow cisa cybersecurity jt2go null pointer dereference siemens teamcenter visualization vulnerabilities
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    • Forum: Security Alerts
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