CVE-2024-21409
Published: 09 April 2024
Summary
CVE-2024-21409 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft .Net Framework. Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 1.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2024-21409 is a remote code execution vulnerability in .NET, .NET Framework, and Visual Studio that is associated with a use-after-free weakness. It carries a CVSS 3.1 score of 7.3 and affects these Microsoft development platforms and runtimes when processing certain inputs locally.
An attacker with local access and low privileges can exploit the flaw when a user interacts with a malicious file or application, resulting in arbitrary code execution that can compromise confidentiality, integrity, and availability on the affected system.
Microsoft security updates addressing the issue are available through the MSRC update guide, and organizations are advised to apply the relevant patches for .NET, .NET Framework, and Visual Studio. A NetApp advisory also references the same Microsoft guidance for affected environments. The EPSS score has remained at 0.5762 without a material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-1130
Vulnerability details
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.