MSHTML Framework Security Feature Bypass Vulnerability
Actively exploited in the wild. Patch or mitigate immediately — don't wait for a maintenance window.
An unauthenticated attacker, remotely over the network, if a user is tricked into opening a malicious file or link, can fully compromise the system — steal data, tamper with it and take it offline.
Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.
Inferred from the weakness type (CWE) and how the flaw is reached — the techniques an attacker would chain to exploit this. Real-world corroboration appears here as threat intel is folded in.
Corroborated threat activity referencing this CVE — with source and confidence, not inference.
Named threat actors and observed ATT&CK techniques appear here as intel feeds are folded in — the ATT&CK chain above stays inferred until then.
Generated by Wavense from the CVE record — an immediate mitigation and the permanent fix.
Restrict user access to untrusted websites and email attachments, especially for systems that utilize the MSHTML Framework. Implement robust network segmentation and egress filtering to limit potential command-and-control communication if a bypass occurs. Deploy enhanced endpoint detection and response (EDR) solutions to monitor for suspicious process creation or unusual network connections originating from MSHTML-dependent applications.
Apply the vendor-provided security updates released by Microsoft as soon as they become available. Ensure all systems running the MSHTML Framework, including those leveraging IE mode or embedding its components, are updated to the latest secure version. Verify successful patch deployment across the entire environment to permanently address the protection mechanism failure.
An attacker can remotely bypass a critical security feature within the MSHTML Framework, potentially leading to unauthorized code execution or arbitrary data access. This circumvention of protection mechanisms could facilitate further system compromise on affected user machines. The business consequences include potential data breaches, system unavailability, and compliance violations.
Other CVEs affecting windows 10 1607
A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS Server Remote Code Execution Vulnerability'.
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista, Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to take control of the affected system when Windows Search fails to handle objects in memory, aka "Windows Search Remote Code Execution Vulnerability".
HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted HTTP requests, aka "HTTP.sys Remote Code Execution Vulnerability."
A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1032, CVE-2020-1036, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043.