Microsoft Net Framework 4.0 V 30319 Vulnerabilities __top__

The patch for CVE-2017-8759 was backported to .NET 4.0 via the October 2017 Security and Quality Rollup. Any system still on original RTM or an early 4.0 build is completely exposed. This exploit was famously used by the FIN7 (Carbanak) gang to deliver DNSMessenger malware. 2. CVE-2018-8269 – DataView Row Filter DoS/RCE Severity: 7.8 (High) Vector: Denial of Service leading to RCE

While marketed as an ASP.NET Core bug, this vulnerability stems from the .NET Framework’s handling of get_Item in System.Web.HttpCookie . Attackers could bypass __VIEWSTATE validation, leading to information disclosure or arbitrary file read via path traversal ( ../../../Windows/win.ini style attacks). microsoft net framework 4.0 v 30319 vulnerabilities

If your system reports a clr.dll version lower than 4.0.30319.42000 , consider it a critical finding. Do not rely on legacy code's "it hasn't been hacked yet" fallacy. Upgrade to .NET 4.8, enforce modern cryptographic defaults, and decommission any OS that cannot support the latest patches. The patch for CVE-2017-8759 was backported to

This is an obscure but severe flaw in how System.Data.DataView processes row filter expressions. If an application allows user input to affect a row filter string without sanitization, an attacker can inject specially crafted expressions that cause memory corruption. If your system reports a clr

This vulnerability resides in the ISymUnmanagedReader interface used by the .NET Framework to parse debugging symbols from WSDL (Web Services Description Language). An attacker can craft a malicious SOAP endpoint. When a .NET 4.0 application attempts to consume this WSDL, the parser executes arbitrary code.

However, in the cybersecurity world, "legacy" is often a synonym for "risk." While version 4.0.30319 is robust, it is no longer the latest. Microsoft has since released 4.5, 4.6, 4.7, and 4.8. Consequently, running an application strictly on the base build (without subsequent in-place updates) exposes organizations to a growing list of documented and weaponized vulnerabilities.