Use After Free in Microsoft .Net Framework 3.5 And 4.7.2

CVE-2024-21409

.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability

Vulnerability class: Use-After-Free

EPSS: 0.576 (98.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-21409?
CVE-2024-21409 is a high-severity vulnerability in Microsoft .Net Framework 3.5 And 4.7.2, classified under Use After Free. CVSS score: 7.3/10. Published 2024-04-09.
How severe is CVE-2024-21409?
High severity. CVSS v3 base score is 7.3 out of 10.
Is CVE-2024-21409 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.